Citation
Raffensperger. 1941. “Sanitary set-up, United States Department of Agriculture Zoological Division, Moultrie, Georgia; the set-up is used to control kidney worms and other parasites of swine.” Special Collections, USDA National Agricultural Library. Accessed April 24, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/7680.