APA (7th ed.) Citation

Bunch, B. H. (1983). Fun with math. World Book Encyclopedia.

Chicago Style (17th ed.) Citation

Bunch, Bryan H. Fun with Math. Chicago, [Ill.]: World Book Encyclopedia, 1983.

MLA (9th ed.) Citation

Bunch, Bryan H. Fun with Math. World Book Encyclopedia, 1983.

Warning: These citations may not always be 100% accurate.