APA (7th ed.) Citation

Armstrong, D. E., Harris, R. F., & Syers, J. K. (1971). Plant available phosphorus status of lakes. University of Wisconsin, Water Resources Center, Hydraulic & Sanitary Laboratory.

Chicago Style (17th ed.) Citation

Armstrong, D. E., R. F. Harris, and John K. Syers. Plant Available Phosphorus Status of Lakes. Madison: University of Wisconsin, Water Resources Center, Hydraulic & Sanitary Laboratory, 1971.

MLA (9th ed.) Citation

Armstrong, D. E., et al. Plant Available Phosphorus Status of Lakes. University of Wisconsin, Water Resources Center, Hydraulic & Sanitary Laboratory, 1971.