No digital file available.
Please contact Special Collections for access.
Citation
Mathies, James C.. 1974. “X-ray Spectrographic Microanalysis of Human Urine for Arsenic.” Special Collections, USDA National Agricultural Library. Accessed September 22, 2026, https://www.nal.usda.gov/exhibits/speccoll/items/show/5520.
An official website of the United States government.