Online Books by
W. R. Kehr
(Kehr, W. R. (William Ralph), 1921-)
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Kehr, W. R. (William Ralph), 1921-: Appraisal for combined pea aphid and spotted alfalfa aphid resistance in alfalfa (University of Nebraska, College of Agriculture & Home Economics, Agricultural Experiment Station, 1965), also by W. L. Howe and C. O. Calkins (page images at HathiTrust)- Kehr, W. R. (William Ralph), 1921-: Dawson alfalfa : a new variety resistant to aphids and bacterial wilt (University of Nebraska College of Agriculture and Home Economics, Agricultural Experiment Station, 1968), also by George Rudolph Manglitz and R. L. Ogden (page images at HathiTrust)
- Kehr, W. R. (William Ralph), 1921-: Performance of alfalfas under five management systems (University of Nebraska, College of Agriculture, Agricultural Experiment Station, 1963) (page images at HathiTrust)
- Kehr, W. R. (William Ralph), 1921-: Performance of certified seed lots of Dawson alfalfa (University of Nebraska-Lincoln, Institute of Agriculture and Natural Resources, Agricultural Experiment Station, 1976), also by George Rudolf Manglitz (page images at HathiTrust)
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