Geological Society of America. (1991). GSA today: A publication of the Geological Society of America. Geological Society of America.
Style de citation Chicago (17e éd.)Geological Society of America. GSA Today: A Publication of the Geological Society of America. Boulder, Colo.: Geological Society of America, 1991.
Style de citation MLA (9e éd.)Geological Society of America. GSA Today: A Publication of the Geological Society of America. Geological Society of America, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.