Não informado. (1973). Journal of research of the United States Geological Survey. U.S. Geological Survey.
Style de citation Chicago (17e éd.)Não informado. Journal of Research of the United States Geological Survey. Washington: U.S. Geological Survey, 1973.
Style de citation MLA (8e éd.)Não informado. Journal of Research of the United States Geological Survey. U.S. Geological Survey, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.