APA (7e ed.) Bronvermelding

Walling, W. E. (1912). A survey of the world-wide revolutionary movement. New York: The MacMillan Company.

Chicago (17e ed.) Bronvermelding

Walling, William English. A Survey of the World-wide Revolutionary Movement. New York: The MacMillan Company, 1912.

MLA (8e ed.) Bronvermelding

Walling, William English. A Survey of the World-wide Revolutionary Movement. New York: The MacMillan Company, 1912.