Mathematical circus :
more games, puzzles, paradoxes, & other mathematical entertainments from Scientific American, with thoughts from readers, after thoughts from the author, and 105 drawings & diagrams /
Martin Gardner.

APA Citation

Gardner, M. (1979). Mathematical circus: more games, puzzles, paradoxes, & other mathematical entertainments from Scientific American, with thoughts from readers, after thoughts from the author, and 105 drawings & diagrams. New York: Knopf.

MLA Citation

Gardner, Martin, 1914-2010. Mathematical Circus: More Games, Puzzles, Paradoxes, & Other Mathematical Entertainments From Scientific American, With Thoughts From Readers, After Thoughts From the Author, And 105 Drawings & Diagrams. New York: Knopf, 1979.

Warning: These citations may not always be complete (especially for serials).