Vardeman, Robert E. World of mazes / Robert E. Vardeman. - New York : Ace Science Fiction Books, 1983. - 219 p. ; 18 cm. - Cenotaph Road ; 3 . - Ace Science Fiction Cenotaph Road series An Ace Science Fiction Book Ace Original . ISBN: 0441910300 : $2.75 9780441910304 LCCN: 2009529112 Index Terms--Genre/Form: Science fiction. LC Class. No.: CPB Box no. 2980 vol. 12