Calder, R. (1961). After the seventh day: The world man created. Simon and Schuster.
Style de citation Chicago (17e éd.)Calder, Ritchie. After the Seventh Day: The World Man Created. New York: Simon and Schuster, 1961.
Style de citation MLA (9e éd.)Calder, Ritchie. After the Seventh Day: The World Man Created. Simon and Schuster, 1961.
Attention : ces citations peuvent ne pas être correctes à 100%.