APA (7th ed.) Citation

Bonjour, E., & Hottinger, M. (1946). Swiss neutrality, its history and meaning. G. Allen & Unwin, ltd.

Chicago Style (17th ed.) Citation

Bonjour, Edgar, and Mary Hottinger. Swiss Neutrality, Its History and Meaning. London: G. Allen & Unwin, ltd, 1946.

MLA (9th ed.) Citation

Bonjour, Edgar, and Mary Hottinger. Swiss Neutrality, Its History and Meaning. G. Allen & Unwin, ltd, 1946.