Johnston, Warren E. <br/><br/>
California crop trends :  yields, acreages, and production areas. 

 - Davis :  University of California,  1969. 
 - Circular / California Agricultural Experiment Station ;  551 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos<br/>Horticultura
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Folleto