APA (7th ed.) Citation

Wollheim, D. A. (1958). Edge of time. Avalon Books.

Chicago Style (17th ed.) Citation

Wollheim, Donald A. Edge of Time. New York: Avalon Books, 1958.

MLA (9th ed.) Citation

Wollheim, Donald A. Edge of Time. Avalon Books, 1958.

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