The efficacy and economic effects of plant quarantines in California  / 
Harry S. Smith [et.al.] 
 - Berkeley, Cal.  :   Agricultural Experiment Station 
 - 276 p. 
 - California. Agr. Exp. Sta. Bull.; 553 .
<br/><br/><label>LCCN: </label>202174 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas -- Cuarentena  Sanidad vegetal
<br/><br/><label>Dewey Class. No.: </label>PA 632.93 E44