Heyns, Juan <br/><br/>
A guide to the plant and soil nemadotes of South Africa / 
Juan Heyns 
 - Cape Town :  A. A. Balkema,  1971 
 - 233 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant nematoda<br/>Soil nematodes<br/>Nematoda--Africa, South