![Logic Programming Ser.: Eco-Logic : Logic-Based Approaches to Ecological Modelling by Alan Bundy, Michael Uschold, David Robertson, Robert Meutzelfeldt and Mandy Haggith (1991, Hardcover) for sale online | eBay Logic Programming Ser.: Eco-Logic : Logic-Based Approaches to Ecological Modelling by Alan Bundy, Michael Uschold, David Robertson, Robert Meutzelfeldt and Mandy Haggith (1991, Hardcover) for sale online | eBay](https://i.ebayimg.com/images/g/4PcAAOSwpElf~wtp/s-l600.jpg)
Logic Programming Ser.: Eco-Logic : Logic-Based Approaches to Ecological Modelling by Alan Bundy, Michael Uschold, David Robertson, Robert Meutzelfeldt and Mandy Haggith (1991, Hardcover) for sale online | eBay
![Umberto Eco's Antilibrary: Why Unread Books Are More Valuable to Our Lives than Read Ones – The Marginalian Umberto Eco's Antilibrary: Why Unread Books Are More Valuable to Our Lives than Read Ones – The Marginalian](https://i0.wp.com/www.themarginalian.org/wp-content/uploads/2015/03/blackswan.jpg?w=680&ssl=1)
Umberto Eco's Antilibrary: Why Unread Books Are More Valuable to Our Lives than Read Ones – The Marginalian
![Doctor Ecco's Cyberpuzzles : 36 Puzzles for Hackers and Other Mathematical Detectives (Paperback) - Walmart.com Doctor Ecco's Cyberpuzzles : 36 Puzzles for Hackers and Other Mathematical Detectives (Paperback) - Walmart.com](https://i5.walmartimages.com/asr/9dc87df7-c89b-4e6d-8e34-0e0bacb33b2f_1.cc5558acfdd4ff00026394c354eb841d.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Doctor Ecco's Cyberpuzzles : 36 Puzzles for Hackers and Other Mathematical Detectives (Paperback) - Walmart.com
![The Puzzling Adventures of Dr. Ecco (Dover Recreational Math): Shasha, Dennis: 9780486296159: Amazon.com: Books The Puzzling Adventures of Dr. Ecco (Dover Recreational Math): Shasha, Dennis: 9780486296159: Amazon.com: Books](https://m.media-amazon.com/images/I/3166395NVmL._AC_SY780_.jpg)
The Puzzling Adventures of Dr. Ecco (Dover Recreational Math): Shasha, Dennis: 9780486296159: Amazon.com: Books
![Titus Lucretius Carus, His Six Books of Epicurean Philosophy, Done Into English Verse, with Notes. by T. Creech, ... (The Fifth Edition.) (Paperback) - Walmart.com Titus Lucretius Carus, His Six Books of Epicurean Philosophy, Done Into English Verse, with Notes. by T. Creech, ... (The Fifth Edition.) (Paperback) - Walmart.com](https://i5.walmartimages.com/asr/d93cce0c-fb30-49c4-9030-9e2bbfdfb0d4_1.596babec820b84292f9c966e0c7e452e.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Titus Lucretius Carus, His Six Books of Epicurean Philosophy, Done Into English Verse, with Notes. by T. Creech, ... (The Fifth Edition.) (Paperback) - Walmart.com
![Logic, or Rational Thoughts on the Powers of the Human Understanding; With Their Use and Application Logic, or Rational Thoughts on the Powers of the Human Understanding; With Their Use and Application](https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1394356664l/21007292.jpg)
Logic, or Rational Thoughts on the Powers of the Human Understanding; With Their Use and Application
![Amazon.com: Dr. Ecco: Mathematical Detective (Codes, Puzzles, and Conspiracy): 9780486435527: Shasha, Dennis: Books Amazon.com: Dr. Ecco: Mathematical Detective (Codes, Puzzles, and Conspiracy): 9780486435527: Shasha, Dennis: Books](https://m.media-amazon.com/images/I/51G4FbqpnrL._AC_SY780_.jpg)
Amazon.com: Dr. Ecco: Mathematical Detective (Codes, Puzzles, and Conspiracy): 9780486435527: Shasha, Dennis: Books
![Amazon.com: Dr. Ecco: Mathematical Detective (Codes, Puzzles, and Conspiracy): 9780486435527: Shasha, Dennis: Books Amazon.com: Dr. Ecco: Mathematical Detective (Codes, Puzzles, and Conspiracy): 9780486435527: Shasha, Dennis: Books](https://m.media-amazon.com/images/I/51G4FbqpnrL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingTHREE%2CBottomLeft%2C360%2C-6_SR600%2C315_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)