Cita APA (7th ed.)
Somerville, J. (1967). Philosophy of Marxism: An exposition (ed.). Random House.
Cita Chicago (17th ed.)
Somerville, John. Philosophy of Marxism: An Exposition. ed. New York: Random House, 1967.
Cita MLA (9th ed.)
Somerville, John. Philosophy of Marxism: An Exposition. ed. Random House, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.