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The Puzzling Adventures of Dr.Ecco : Dennis Shasha : 9780486296159
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The Puzzling Adventures of Dr. Ecco
Doctor Ecco's Cyberpuzzles: 36 Puzzles for Hackers and Other Mathematical Detectives by Dennis E. Shasha
The Puzzling Adventures of Dr. Ecco by Dennis E. Shasha
Professor Scarlet's Notebook: A Companion Volume to Dennis Shasha's the Puzzling Adventures of Dr. Ecco
Codes, Puzzles, And Conspiracy - Dennis Shasha
Doctor Ecco's Cyberpuzzles: Shasha, Dennis E.: 9780393325416: Amazon.com: Books
The Island Of Doctor Destroyer (6th Edition) - By Christopher R Taylor (paperback) : Target
The Puzzling Adventures of Dr.Ecco : Dennis Shasha : 9780486296159
The Puzzling Adventures of Dr. Ecco (Dover Recreational Math): Shasha, Dennis: 9780486296159: Amazon.com: Books
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The Puzzling Adventures of Dr.Ecco : Dennis Shasha : 9780486296159
Doctor Ecco's Cyberpuzzles: 36 Puzzles for Hackers and Other Mathematical Detectives by Dennis E. Shasha
Doctor Ecco's Cyberpuzzles: Shasha, Dennis E.: 9780393325416: Amazon.com: Books
The Puzzling Adventures of Dr. Ecco by Dennis E. Shasha
The Puzzling Adventures of Dr. Ecco by Dennis E. Shasha
Dr Robotnik's Mean Bean Machine" (Puzzle) | Business Insider India
