Chapman, S.R. <br/><br/>
Crop production   Principles and practices. 
S.R Chapman 
 - San Francisco   W.H Freeman and Company  1976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Field Crops
<br/><br/><label>LC Class. No.: </label>SB 185 .C52