Rickert, D. A. (1977). Algal conditions and the potential for future algal problems in the Willamette River, Oregon. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationRickert, David A. Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon. [Reston, Virginia]: United States Department of the Interior, Geological Survey, 1977.
MLA (9th ed.) CitationRickert, David A. Algal Conditions and the Potential for Future Algal Problems in the Willamette River, Oregon. United States Department of the Interior, Geological Survey, 1977.
Warning: These citations may not always be 100% accurate.