151. Volume 14, Number 5: Extension Service news Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture, Cornell University Publication Place: Ithaca, N.Y. Date: 1931 Format: Issue
152. Volume 14, Number 6: Extension Service news Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture, Cornell University Publication Place: Ithaca, N.Y. Date: 1931 Format: Issue