Marshall, Timothy T., William R. Walker, David L. Prichard, and Saundra H. TenBroeck. 2003. “Selecting Pigs for Youth Swine Shows: 4HSWG04/4H210, 6/2002”. EDIS 2003 (11). Gainesville, FL. https://doi.org/10.32473/edis-4h210-2002.