APA (7th ed.) Citation

Kals, W. S. (1990). Stars and planets: The Sierra Club guide to sky watching and direction finding. Sierra Club Books.

Chicago Style (17th ed.) Citation

Kals, W. S. Stars and Planets: The Sierra Club Guide to Sky Watching and Direction Finding. San Francisco, CA: Sierra Club Books, 1990.

MLA (9th ed.) Citation

Kals, W. S. Stars and Planets: The Sierra Club Guide to Sky Watching and Direction Finding. Sierra Club Books, 1990.