APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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