APA (7th ed.) Citation

Kline, O. A. (1961). Planet of peril. Avalon Books.

Chicago Style (17th ed.) Citation

Kline, Otis Adelbert. Planet of Peril. New York: Avalon Books, 1961.

MLA (9th ed.) Citation

Kline, Otis Adelbert. Planet of Peril. Avalon Books, 1961.

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