APA (7th ed.) Citation

Peterson, F. (1945). American labor unions: What they are and how they work. Harper.

Chicago Style (17th ed.) Citation

Peterson, Florence. American Labor Unions: What They Are and How They Work. New York, London: Harper, 1945.

MLA (9th ed.) Citation

Peterson, Florence. American Labor Unions: What They Are and How They Work. Harper, 1945.