Cita APA (7a ed.)

Northrup, H. R., Storholm, G. R., & paul, A. A. (1967). Restrictive labor practices in the supermarket industry. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Northrup, Herbert Roof, Gordon R. Storholm, y A. Abodeely paul. Restrictive Labor Practices in the Supermarket Industry. Philadelphia: University of Pennsylvania Press, 1967.

Cita MLA (9a ed.)

Northrup, Herbert Roof, et al. Restrictive Labor Practices in the Supermarket Industry. University of Pennsylvania Press, 1967.