Crop production : principles and practices /
Metcalfe, Darrel S.,
Crop production : principles and practices / Darrel S. Metcalfe, Donald M. Elkins. - 4th ed. - New York : Macmillan, c1980. - ix, 774 p. : ill. ;
First-2d ed. by H. D. Hughes and E. R. Henson; 3d ed. by H. D. Hughes and D. S. Metcalfe.
0023807105
Field crops.
SB185 / .H75 1980
Crop production : principles and practices / Darrel S. Metcalfe, Donald M. Elkins. - 4th ed. - New York : Macmillan, c1980. - ix, 774 p. : ill. ;
First-2d ed. by H. D. Hughes and E. R. Henson; 3d ed. by H. D. Hughes and D. S. Metcalfe.
0023807105
Field crops.
SB185 / .H75 1980