Atwater, Wilbur Olin, H. C. Sherman, and R. C. Carpenter. “The Effect of Severe and Prolonged Muscular Work on Food Consumption, Digestion, and Metabolism.” U.S. Department of Agriculture Bulletin, No. 98. Washington, D.C.:Government Printing Office., 1901

Atwater, Wilbur Olin, H. C. Sherman, and R. C. Carpenter. “The Effect of Severe and Prolonged Muscular Work on Food Consumption, Digestion, and Metabolism.” U.S. Department of Agriculture Bulletin, No. 98. Washington, D.C.:Government Printing Office., 1901, III, Box: 2, Folder: 7A. Wilbur Olin Atwater Papers, MS0261. National Agricultural Library Special Collections. http://localhost:8081/repositories/4/archival_objects/41047 Accessed March 09, 2025.