1. Protein split products in relation to immunity and disease Creator: Vaughan, Victor C. 1851-1929. Collection: Core Historical Literature of Agriculture Publisher: Lea & Febiger, Publication Place: Philadelphia : Date: 1913 Format: Book
2. State Fair exhibit on foods with vitamins that support immunity and strength Collection: Human Ecology Historical Photographs Set: Research, Extension, and Outreach Local and County Fairs Date: 1932 Format: Image