Norden, R. (1985). Symbols and their meaning. Concordia.
Style de citation Chicago (17e éd.)Norden, Rudolf. Symbols and Their Meaning. Louis: Concordia, 1985.
Style de citation MLA (9e éd.)Norden, Rudolf. Symbols and Their Meaning. Concordia, 1985.
Attention : ces citations peuvent ne pas être correctes à 100%.