Crop production :
Chapman, Stephen R.
Crop production : principles and practices / Stephen R. Chapman and Lark P. Carter. - San Francisco : W. H. Freeman, c1976. - 566 p. : ill. ; 24 cm.
Crop production : principles and practices / Stephen R. Chapman and Lark P. Carter. - San Francisco : W. H. Freeman, c1976. - 566 p. : ill. ; 24 cm.