Mass, M., A. Letourneau and J.A. Miller, eds. New Directions in Agriculture. New Haven, CT: Yale University School of Forestry and Environmental Studies and the Charles Valentine Riley Memorial Foundation, 1991. [Presented on the occasion of the awarding of the Charles Valentine Riley Memorial Prize, November 10, 1988 in New Haven, CT.], 1991

Mass, M., A. Letourneau and J.A. Miller, eds. New Directions in Agriculture. New Haven, CT: Yale University School of Forestry and Environmental Studies and the Charles Valentine Riley Memorial Foundation, 1991. [Presented on the occasion of the awarding of the Charles Valentine Riley Memorial Prize, November 10, 1988 in New Haven, CT.], 1991, Box: 1. Charles Valentine Riley Memorial Foundation Records, MS0281. National Agricultural Library Special Collections. http://localhost:8081/repositories/4/archival_objects/55880 Accessed November 28, 2025.