21. Number 41: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
22. Number 42: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
23. Number 43: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
24. Number 44: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
25. Number 45: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
26. Number 46: Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
27. Number 1-46, Index : Farm economics Collection: Core Historical Literature of Agriculture Publisher: Cornell University. N.Y. State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1927 Format: Issue
28. Volume 53, Number 1: Transactions of the American Entomological Society Collection: Core Historical Literature of Agriculture Publisher: American Entomological Society Publication Place: Philadelphia Date: 1927 Format: Issue
29. Volume 53, Number 2: Transactions of the American Entomological Society Collection: Core Historical Literature of Agriculture Publisher: American Entomological Society Publication Place: Philadelphia Date: 1927 Format: Issue
30. Volume 53, Number 3: Transactions of the American Entomological Society Collection: Core Historical Literature of Agriculture Publisher: American Entomological Society Publication Place: Philadelphia Date: 1927 Format: Issue