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John L. Havlin

3 books

Books by John L. Havlin

Soil Testing
Soil Testing
2015
Soil fertility and fertilizers : and introduction to nutrient management - 8. ed.
Soil fertility and fertilizers : and introduction to nutrient management - 8. ed.
2014
Dryland Cropping Systems Semia
Dryland Cropping Systems Semiarid
1999