3. Communal harvest work Collection: Vicos Collection Location: Vicos Ancash Date: 1958 Format: Image
4. Thrashing maize using horses Collection: Vicos Collection Location: Vicos Ancash Date: 1958 Format: Image
5. Men and women of Vicos winnowing barley together Collection: Vicos Collection Date: 1958 Format: Image
9. Volume 32, Number 1: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1958 Format: Issue
10. Volume 32, Number 2: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1958 Format: Issue