APA (7th ed.) Citation

Petrie, C. (1968). The drift to world war, 1900-1914 / by Sir Charles Petrie. Benn.

Chicago Style (17th ed.) Citation

Petrie, Charles. The Drift to World War, 1900-1914 / by Sir Charles Petrie. Benn, 1968.

MLA (9th ed.) Citation

Petrie, Charles. The Drift to World War, 1900-1914 / by Sir Charles Petrie. Benn, 1968.

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