Citation
Unknown. 1931. “Location and original boundary of the 30-acre tract on the Beltsville farm of the U.S. Department of Agriculture, which was allotted to the Zoological Division in 1929 for the construction of its Animal Parasite Research Laboratory.” Special Collections, USDA National Agricultural Library. Accessed August 20, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/8093.