APA (7th ed.) Citation

Nourse, A. E. (1960). Nine planets. Pyramid Publication.

Chicago Style (17th ed.) Citation

Nourse, Alan E. Nine Planets. New York: Pyramid Publication, 1960.

MLA (9th ed.) Citation

Nourse, Alan E. Nine Planets. Pyramid Publication, 1960.

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