1.
Problems of knowledge and freedom. New York: Pantheon Books, a division of Random House; 1971.
Problems of knowledge and freedom. New York : Pantheon Books, a division of Random House, 5 mai 1971. ISBN 0-394-47260-8
Chomsky Noam. (1971). Problems of knowledge and freedom: The Russell lectures. Pantheon Books, a division of Random House.
Style de citation MLA (8e éd.)Chomsky Noam. Problems of Knowledge and Freedom: The Russell Lectures. Pantheon Books, a division of Random House, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.