Não informado. (2003). Earth Sciences History. History of the Earth Sciences Society.
Style de citation Chicago (17e éd.)Não informado. Earth Sciences History. Troy, NY: History of the Earth Sciences Society, 2003.
Style de citation MLA (8e éd.)Não informado. Earth Sciences History. History of the Earth Sciences Society, 2003.
Attention : ces citations peuvent ne pas être correctes à 100%.