Cita APA (7a ed.)

United States. General Accounting Office, ebrary, Inc, & Vellios, B. T. (2009). Environmental Protection Agency library network. Nova Science Publishers.

Cita Chicago Style (17a ed.)

United States. General Accounting Office, Inc ebrary, y Bernard T. Vellios. Environmental Protection Agency Library Network. Hauppauge, N.Y.: Nova Science Publishers, 2009.

Cita MLA (9a ed.)

United States. General Accounting Office, et al. Environmental Protection Agency Library Network. Nova Science Publishers, 2009.