11. Volume 4, Number 1: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1930 Format: Issue
12. Volume 4, Index : Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1930 Format: Issue
13. Volume 4, Number 2: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1930 Format: Issue
14. Volume 4, Number 3: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1930 Format: Issue
15. Volume 4, Number 4: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1930 Format: Issue
16. Volume 5, Number 1: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1931 Format: Issue
17. Volume 5, Number 2: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1931 Format: Issue
18. Volume 5, Number 3: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1931 Format: Issue
19. Volume 5, Number 4: Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1931 Format: Issue
20. Volume 5, Index : Agricultural history Collection: Core Historical Literature of Agriculture Publisher: Agricultural History Society Publication Place: Fargo, N.D. Date: 1931 Format: Issue