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Start Over Author Agriculture Department Sudoc Stem A 56.17

21. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 13. no. 7; July 1940.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1940.]
SuDoc number:: A 56.17:13/7

22. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 11, no. 12; Dec. 1938.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:11/12

23. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 10; Oct. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/10

24. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 11; Nov. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/11

25. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 1; Jan. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/1

26. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 2; Feb. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/2

27. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 3; Mar. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/3

28. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 4; Apr. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/4

29. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 5; May 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/5

30. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 6; June 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/6

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