Citation
Forsythe, United States Department of Agriculture Office of Information. 1952. “Aerial view of the Beltsville Parasitology Laboratory, Animal Disease and Parasites.” Special Collections, USDA National Agricultural Library. Accessed December 10, 2025, https://www.nal.usda.gov/exhibits/speccoll/items/show/7667.
An official website of the United States government.
