APA (7th ed.) Citation

Singer, K. D. (1951). The world's 30 greatest women spies. W. Funk.

Chicago Style (17th ed.) Citation

Singer, Kurt D. The World's 30 Greatest Women Spies. New York: W. Funk, 1951.

MLA (9th ed.) Citation

Singer, Kurt D. The World's 30 Greatest Women Spies. W. Funk, 1951.

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