LEONARD, H., & MARTIN, H. (1949). PRINCIPLES OF FIELD CROP PRODUCTION.
Chicago Edition CitationLEONARD, H., and H. MARTIN. PRINCIPLES OF FIELD CROP PRODUCTION. NEWYORK, THE MACMILLIAN COMPANY, 1949.
Deismireacht MLALEONARD, H., and H. MARTIN. PRINCIPLES OF FIELD CROP PRODUCTION. 1949.
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