No digital file available.
Please contact Special Collections for access.
Citation
Harriss, Robert C., David B. White, and Robert B. Macfarlane. 1970. “Mercury Compounds Reduce Photosynthesis by Plankton.” Special Collections, USDA National Agricultural Library. Accessed October 1, 2026, https://www.nal.usda.gov/exhibits/speccoll/items/show/4672.
An official website of the United States government.