Crop production /
Delorit, Richard J. 1921-
Crop production / Richard J. Delorit, Louis J. Greub Henry L. Ahlgren. - 4th ed. - Englewood Cliffs, N.J., : Prentice-Hall, [1973, c1974] - 744 p. : ill. - Prentice-Hall vocational agriculture series .
0131947613
Field crops.
Crop production / Richard J. Delorit, Louis J. Greub Henry L. Ahlgren. - 4th ed. - Englewood Cliffs, N.J., : Prentice-Hall, [1973, c1974] - 744 p. : ill. - Prentice-Hall vocational agriculture series .
0131947613
Field crops.