Cita APA (7th ed.)
Bergson, A. (1978). Productivity and the social system- the USSR and the West. Harvard University Press.
Cita Chicago (17th ed.)
Bergson, Abram. Productivity and the Social System- the USSR and the West. Cambridge, Massachusetts ; London, England: Harvard University Press, 1978.
Cita MLA (9th ed.)
Bergson, Abram. Productivity and the Social System- the USSR and the West. Harvard University Press, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.