APA (7th ed.) Citation

Haskins, C. H., & Lord, R. H. (1920). Some problems of the Peace conference. Harvard University Press [etc.].

Chicago Style (17th ed.) Citation

Haskins, Charles Homer, and Robert Howard Lord. Some Problems of the Peace Conference. Cambridge (Massachusetts) [etc.]: Harvard University Press [etc.], 1920.

MLA (9th ed.) Citation

Haskins, Charles Homer, and Robert Howard Lord. Some Problems of the Peace Conference. Harvard University Press [etc.], 1920.