APA (7th ed.) Citation

Sorokin, P. A., Zimmerman, C. C., & Galpin, C. J. (1930). A systematic source book in rural sociology. The University of Minnesota Press.

Chicago Style (17th ed.) Citation

Sorokin, Pitirim Aleksandrovich, Carle C. Zimmerman, and Charles Josiah Galpin. A Systematic Source Book in Rural Sociology. Minneapolis: The University of Minnesota Press, 1930.

MLA (9th ed.) Citation

Sorokin, Pitirim Aleksandrovich, et al. A Systematic Source Book in Rural Sociology. The University of Minnesota Press, 1930.