APA (7th ed.) Citation

Whelen, F. L. (1932). The Covenant explained for speakers and study circles (6th. ed.). League of Nations Union.

Chicago Style (17th ed.) Citation

Whelen, Frederick L. The Covenant Explained for Speakers and Study Circles. 6th. ed. London: League of Nations Union, 1932.

MLA (8th ed.) Citation

Whelen, Frederick L. The Covenant Explained for Speakers and Study Circles. 6th. ed. League of Nations Union, 1932.