APA (7th ed.) Citation

Honsberger, R. (1970). Ingenuity in mathematics. Random House/Singer School Division.

Chicago Style (17th ed.) Citation

Honsberger, Ross. Ingenuity in Mathematics. New York: Random House/Singer School Division, 1970.

MLA (9th ed.) Citation

Honsberger, Ross. Ingenuity in Mathematics. Random House/Singer School Division, 1970.

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