Delorit, Richard J.  1921- <br/><br/>
Crop production 
[by] Richard J. Delorit [and] Henry L. Ahlgren. 
 - 2nd ed. 
 - Englewood Cliffs, N.J.  Prentice-Hall  1959 
 - vi, 666p. :  ill. 
 - Prentice-Hall vocational agriculture series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops.
<br/><br/><label>LC Class. No.: </label>SB185  / .D43 1967 
<br/><br/><label>Dewey Class. No.: </label>633