Cita APA (7a ed.)

Petrovic, G. (1967). Marx in the mid-twentieth century: A Yugoslav philosopher considers Karl Marx's writings. Doubleday & Company.

Cita Chicago Style (17a ed.)

Petrovic, Gajo. Marx in the Mid-twentieth Century: A Yugoslav Philosopher Considers Karl Marx's Writings. Garden City, New York: Doubleday & Company, 1967.

Cita MLA (9a ed.)

Petrovic, Gajo. Marx in the Mid-twentieth Century: A Yugoslav Philosopher Considers Karl Marx's Writings. Doubleday & Company, 1967.