Progress in soil zoology : proceedings of the 5th International Colloquium  on soil zoology held in Prague september 17-22, 1973 / 
edited by Jan Vanêk. 
 -- Prague :   Czechoslovak Academy of Sciences,   1975 
 - 630 p. 
<br/><br/>ISBN 90-6193-025-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbiología agraria - Congresos y asambleas<br/>Suelos
<br/><br/><label>Universal Decimal Class. No.: </label>631.461(063) ; 579.64