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 | | Puzzle Box, Volume 1 by Andrea Gilbert, Bram Cohen, Ed Pegg Jr., Richard Candy, Erich Friedman, Harry Nelson, Professor Donald Knuth, Shelly Hazzard, Helen Grabarchuk, Tanya Grabarchuk, Serhiy Grabarchuk, Peter Grabarchuk, Peter Winkler, Peter Grabachuk, Helen Grabarchuck, Tanya Grabarchuck, Peter Grabarchuck Paperback, 96 Pages, Published 2016 by Dover Publications ISBN-13: 978-0-486-81004-1, ISBN: 0-486-81004-6 |
 | | Puzzle Box, Volume 2 by Peter Grabarchuk, Ed Pegg Jr., Andy Parr, Professor Donald Knuth, Helen Grabarchuk, Erich Friedman, Gianni A. Sarcone, Hasan Yurtoglu, Richard Candy, Tanya Grabarchuk, Serhiy Grabarchuk, Shelly Hazard, Suzanne Hazard Paperback, 96 Pages, Published 2017 by Dover Publications ISBN-13: 978-0-486-81348-6, ISBN: 0-486-81348-7 |
Professor Donald Knuth
