1. Number 63: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue
2. Number 64: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue
3. Number 65: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue
4. Number 66: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue
5. Number 67: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue
6. Number 68: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1930 Format: Issue