United States. General Accounting Office & Vellios, B. T. (2009). Environmental Protection Agency library network. Nova Science Publishers, Inc..
Style de citation Chicago (17e éd.)United States. General Accounting Office et Bernard T. Vellios. Environmental Protection Agency Library Network. New York: Nova Science Publishers, Inc., 2009.
Style de citation MLA (8e éd.)United States. General Accounting Office et Bernard T. Vellios. Environmental Protection Agency Library Network. Nova Science Publishers, Inc., 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.