Biosystematics in agriculture :  invited papers presented at a symposium held May 8-11, 1977, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland / 
organized by the BARC Symposium II Committee Lloyd Knutson, chairman sponsored by the Beltsville Agricultural Research Center, Northeastern Region, Agricultural Research Service, United States Department of Agriculture 
 - Osmun, Montclair, N.J. :  Allanheld,  1978 
 - xi, 340 p. :  ill.  25 cm. 
 - Beltsville symposia in agricultural research  v.2 .
<br/><br/> General editor : John A. Romberger 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0470264160 (halsted Press)  RM24.00 
<br/><br/><label>LCCN: </label>77-84408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Classification--Congresses<br/>Agriculture--Congresses