Marx and the proletariat / / Paul Sweezy.

MLA

Sweezy, Paul M. Marx and the Proletariat. Boston: New England Free Press, 1967.

APA

Sweezy, P. M. (1967). Marx and the proletariat. Boston: New England Free Press.

Chicago

Sweezy, Paul M. Marx and the Proletariat. Boston: New England Free Press, 1967.