11. Volume 15, Number 11: American food journal Collection: Home Economics Archive: Research, Tradition and History Publisher: American Food Journal, Inc. Publication Place: New York Date: 1920 Format: Issue
12. Volume 15, Number 12: American food journal Collection: Home Economics Archive: Research, Tradition and History Publisher: American Food Journal, Inc. Publication Place: New York Date: 1920 Format: Issue
13. Volume 13, Number 1: Annals of the Entomological Society of America Collection: Core Historical Literature of Agriculture Publisher: Entomological Society of America Publication Place: Lanham, Md. Date: 1920 Format: Issue
14. Volume 13, Number 2: Annals of the Entomological Society of America Collection: Core Historical Literature of Agriculture Publisher: Entomological Society of America Publication Place: Lanham, Md. Date: 1920 Format: Issue
15. Volume 13, Number 3: Annals of the Entomological Society of America Collection: Core Historical Literature of Agriculture Publisher: Entomological Society of America Publication Place: Lanham, Md. Date: 1920 Format: Issue
16. Volume 13, Number 4: Annals of the Entomological Society of America Collection: Core Historical Literature of Agriculture Publisher: Entomological Society of America Publication Place: Lanham, Md. Date: 1920 Format: Issue
17. Number 5 - Field and Purpose of the American Association for Agricultural Legislation: Bulletin Collection: Core Historical Literature of Agriculture Publisher: American Association for Agricultural Legislation Publication Place: Madison, Wis. Date: 1920 Format: Issue
18. Number 6: Bulletin Collection: Core Historical Literature of Agriculture Publisher: American Association for Agricultural Legislation Publication Place: Madison, Wis. Date: 1920 Format: Issue
19. Number 7 - The Jew and the Land: Bulletin Collection: Core Historical Literature of Agriculture Publisher: American Association for Agricultural Legislation Publication Place: Madison, Wis. Date: 1920 Format: Issue
20. Volume 46, Number 1: Transactions of the American Entomological Society Collection: Core Historical Literature of Agriculture Publisher: American Entomological Society Publication Place: Philadelphia Date: 1920 Format: Issue