11. Volume VI, Number 3: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1957 Format: Issue
12. Volume VI, Number 4: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1957 Format: Issue
13. Volume VI, Number 5: Arkansas farm research Collection: Core Historical Literature of Agriculture Publisher: Agricultural Experiment Station, University of Arkansas Publication Place: Fayetteville, Ark. Date: 1957 Format: Issue
14. Number 922: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1957 Format: Issue
15. Volume 778: Bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State Agricultural Experiment Station Publication Place: Geneva, N.Y. Date: 1957 Format: Issue
16. Number 779: Bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State Agricultural Experiment Station Publication Place: Geneva, N.Y. Date: 1957 Format: Issue
17. Number 780: Bulletin Collection: Core Historical Literature of Agriculture Publisher: New York State Agricultural Experiment Station Publication Place: Geneva, N.Y. Date: 1957 Format: Issue
18. Number 921: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1957 Format: Issue
19. Number 923: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1957 Format: Issue
20. Number 924: Bulletin Collection: Core Historical Literature of Agriculture Publisher: Cornell University Agricultural Experiment Station, New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1957 Format: Issue