APA

Burns E., Marx K., . (19721957). An introduction to Marxism. New York: International Publishers.

Chicago

Burns Emile, Marx Karl, . 19721957. An introduction to Marxism. New York: International Publishers.

Harvard

Burns E., Marx K., . (19721957). An introduction to Marxism. New York: International Publishers.

MLA

Burns Emile, Marx Karl, . An introduction to Marxism. New York: International Publishers. 19721957.