APA (7th ed.) Citation

Heinlein, R. A. (1990). The menace from Earth. Baen Publishing Enterprises.

Chicago Style (17th ed.) Citation

Heinlein, Robert Anson. The Menace from Earth. New York: Baen Publishing Enterprises, 1990.

MLA (9th ed.) Citation

Heinlein, Robert Anson. The Menace from Earth. Baen Publishing Enterprises, 1990.