APA (7th ed.) Citation

Anderson, P. (1964). Three worlds to conquer. Pyramid Books.

Chicago Style (17th ed.) Citation

Anderson, Poul. Three Worlds to Conquer. New York: Pyramid Books, 1964.

MLA (8th ed.) Citation

Anderson, Poul. Three Worlds to Conquer. Pyramid Books, 1964.

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