APA (7th ed.) Citation

Brecher, E., & Gerrad, M. (1997). Challenging science puzzles. Sterling.

Chicago Style (17th ed.) Citation

Brecher, Erwin, and Mike Gerrad. Challenging Science Puzzles. New York, NY: Sterling, 1997.

MLA (9th ed.) Citation

Brecher, Erwin, and Mike Gerrad. Challenging Science Puzzles. Sterling, 1997.

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