O'Shaughnessy, J. C., & McDonnell, A. J. (1973). Criteria for estimating limiting nutrients in natural streams. Pennsylvania State University.
Chicago Style (17th ed.) CitationO'Shaughnessy, James C., and Archie J. McDonnell. Criteria for Estimating Limiting Nutrients in Natural Streams. University Park: Pennsylvania State University, 1973.
MLA (9th ed.) CitationO'Shaughnessy, James C., and Archie J. McDonnell. Criteria for Estimating Limiting Nutrients in Natural Streams. Pennsylvania State University, 1973.
Warning: These citations may not always be 100% accurate.