Delorit, Richard J.  1921- <br/><br/>
Crop production / 
Richard J. Delorit [and] Henry L. Ahlgren. 
 - 2d ed. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1954, c1959 
 - 666 p. :  ill. ;  24 cm. 
 - Prentice-Hall vocational agriculture series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops.
<br/><br/><label>Dewey Class. No.: </label>633  / DEC 1959