APA (7th ed.) Zitazioa
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.
Chicago Style (17th ed.) Zitazioa
Hummel, Kimberly A., eta 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 (9th ed.) Zitazioa
Hummel, Kimberly A., eta 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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