APA (7e ed.) Bronvermelding

Wolff Douglas, D. (1925). Guillaume De Greef: The social theory of an early syndicalist. New York: Columbia University.

Chicago (17e ed.) Bronvermelding

Wolff Douglas, Dorothy. Guillaume De Greef: The Social Theory of an Early Syndicalist. New York: Columbia University, 1925.

MLA (8e ed.) Bronvermelding

Wolff Douglas, Dorothy. Guillaume De Greef: The Social Theory of an Early Syndicalist. New York: Columbia University, 1925.

Let op: Deze citaties zijn niet altijd 100% accuraat.