APA način citiranja (7. izdanje)
United States. General Accounting Office, ebrary, Inc, & Vellios, B. T. (2009). Environmental Protection Agency library network. Nova Science Publishers.
Čikaški stil citiranja (17. izdanje)
United States. General Accounting Office, Inc ebrary, i Bernard T. Vellios. Environmental Protection Agency Library Network. Hauppauge, N.Y.: Nova Science Publishers, 2009.
MLA način citiranja (9. izdanje)
United States. General Accounting Office, et al. Environmental Protection Agency Library Network. Nova Science Publishers, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.