APA (7th ed.) Citation

Hopf, A. L. (1972). The space olympics. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Hopf, Alice Lightner. The Space Olympics. New York: Grosset & Dunlap, 1972.

MLA (9th ed.) Citation

Hopf, Alice Lightner. The Space Olympics. Grosset & Dunlap, 1972.

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