1.
Productivity and the social system. Cambridge (Mass.), London: Harvard University Press; 1978.
Productivity and the social system. Cambridge (Mass.), London : Harvard University Press, 13 mai 1978. ISBN 0-674-71165-3
Bergson Abram. (1978). Productivity and the social system: The USSR and the West. Harvard University Press.
Style de citation MLA (8e éd.)Bergson Abram. Productivity and the Social System: The USSR and the West. Harvard University Press, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.