Douglas, D. W. Guillaume de Greef: The social theory of an early syndicalist. Columbia university (New York).
Chicago Style (17th ed.) CitationDouglas, Dorothy Wolff. Guillaume De Greef: The Social Theory of an Early Syndicalist. Columbia university (New York).
MLA (8th ed.) CitationDouglas, Dorothy Wolff. Guillaume De Greef: The Social Theory of an Early Syndicalist. Columbia university (New York).
Warning: These citations may not always be 100% accurate.