Plant adaptation to mineral stress in problem soils  proceedings of a Workshop held at the National Agricultural Library, Beltsville, Maryland, November 22-23, 1976 
edited by Madison J.Wright. 
 - Ithaca, N.Y.  Cornell University  1976. 
 - 420 pages:    illustration;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Botany--Ecology<br/> Plant--soil relationship