progress in soil biology 
edited by Otto Graff and John E. Satchell 
 - Braunschweig Friedr  Vieweg  1967 
 - 656p. ;   23cm. 
<br/><br/> Proceeds of the colloquim on Dynamics of Soil Communities , Braunschweig- Volkenrode, 5-10 Sept .1966 
<br/><br/><label>Dewey Class. No.: </label>581.506043  /  GRA