Plant health and quarantine in international transfer of genetic resources/ 
editors, William B. Hewitt, Luigi Chiarappa. 
 - Cleveland:  CRC Press,  1977. 
 - 346 p.:  .ill.;  26 cm. 
<br/><br/> At head of title: CRC.  Erratum slip tipped in. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0849354137 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant quarantine.<br/>Seed pathology.<br/>Plant diseases.<br/>Agricultural pests.<br/>Germplasm resources, PLant.