APA引文

Watkins, G. S. (1922). An introduction to the study of labor problems. Thomas Y. Crowell Co..

Chicago Style (17th ed.) Citation

Watkins, Gordon S. An Introduction to the Study of Labor Problems. New York: Thomas Y. Crowell Co., 1922.

MLA引文

Watkins, Gordon S. An Introduction to the Study of Labor Problems. Thomas Y. Crowell Co., 1922.