Filtrado por: Committee chair name sim Dr. Thomas D. Rogers, Emory University Eliminar la restricciónCommittee chair name sim: Dr. Thomas D. Rogers, Emory University Committee Dr. Stuart McCook, University of Guelph Eliminar la restricciónCommittee: Dr. Stuart McCook, University of Guelph Keyword Agronomists Eliminar la restricciónKeyword: Agronomists Research Field History, Latin American Eliminar la restricciónResearch Field: History, Latin American