APA (7th ed.) Citation

Dunlop, S. (1985). Astronomy: A step by step guide to the night sky. Collier Books.

Chicago Style (17th ed.) Citation

Dunlop, Storm. Astronomy: A Step by Step Guide to the Night Sky. New York: Collier Books, 1985.

MLA (9th ed.) Citation

Dunlop, Storm. Astronomy: A Step by Step Guide to the Night Sky. Collier Books, 1985.