APA (7th ed.) Citation

Northrup, H. R. (1944). Organized labor and the Negro. Harper & brothers.

Chicago Style (17th ed.) Citation

Northrup, Herbert Roof. Organized Labor and the Negro. New York, London: Harper & brothers, 1944.

MLA (9th ed.) Citation

Northrup, Herbert Roof. Organized Labor and the Negro. Harper & brothers, 1944.