APA način citiranja (7. izdanje)
Hummel, K. A., & Weston, T. (2003). States face pressure to assess more of the nation's waters and place more stringent clean water act limits on permittees. Environmental Law Institute.
Čikaški stil citiranja (17. izdanje)
Hummel, Kimberly A., i Timothy Weston. States Face Pressure to Assess More of the Nation's Waters and Place More Stringent Clean Water Act Limits on Permittees. Washington, D.C.: Environmental Law Institute, 2003.
MLA način citiranja (9. izdanje)
Hummel, Kimberly A., i Timothy Weston. States Face Pressure to Assess More of the Nation's Waters and Place More Stringent Clean Water Act Limits on Permittees. Environmental Law Institute, 2003.
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