Style de citation APA (7e éd.)
Espenshade, G. H. (1986). Geology of the Marshall Quadrangle, Fauquier County, Virginia. United States Government Print. Office.
Style de citation Chicago (17e éd.)
Espenshade, Gilbert H. Geology of the Marshall Quadrangle, Fauquier County, Virginia. Washington: United States Government Print. Office, 1986.
Style de citation MLA (9e éd.)
Espenshade, Gilbert H. Geology of the Marshall Quadrangle, Fauquier County, Virginia. United States Government Print. Office, 1986.
Attention : ces citations peuvent ne pas être correctes à 100%.