Böhm, Wolfgang <br/><br/>
Methods of studying root systems 
Wolfgang Böhm 
 - New York  Springer-Verlag  1979 
 - xiii, 188 p.  ill.  25 cm. 
 - Ecological studies  v. 33 .
<br/><br/> Includes index 
<br/><br/>Bibliography: p. [141]-182 
<br/><br/><label>ISBN: </label>3-540-09329 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roots (Botany)--Research<br/>Roots (Botany)--Ecology--Methodology