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1.
Elements of plant protection Louis L. Pyenson by Series: Wiley farm series
Material type: Text Text
Publication details: New York John Wiley 1951
Availability: Items available for loan: Govind Ballabh Pant University of Agriculture and Technology (3)Call number: 632.7 P99, ...

2.
Laboratory manual for entomology and plant pathology Louis L. Pyenson and Harvey E. Barke by
Material type: Text Text
Publication details: Westport AVI 1976
Availability: Items available for loan: Govind Ballabh Pant University of Agriculture and Technology (1)Call number: R 632 P995L.

3.
Laboratory manual for entomology and plant pathology Louis L. Pyenson and Harvey E. Barke by
Edition: 2nd
Material type: Text Text
Language: ENG
Publication details: Connecticut The Avi publishing 1981
Availability: Items available for loan: Govind Ballabh Pant University of Agriculture and Technology (1)Call number: 632 P995L,2.

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