Cita APA (7a ed.)

Johnson, H. J. T. (1933). Vatican diplomacy in the world war. B. Blackwell.

Cita Chicago Style (17a ed.)

Johnson, Humphrey J. T. Vatican Diplomacy in the World War. Oxford: B. Blackwell, 1933.

Cita MLA (8a ed.)

Johnson, Humphrey J. T. Vatican Diplomacy in the World War. B. Blackwell, 1933.