Holt, J. A. <br/><br/>
Extraction of macro organic matter from soil / 
J.A. Holt. 
 - Australia :  CSIRO,  1980. 
 - 5p. 
 - CSIRO. Division of soils divisional report;  no.45. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus<br/>Soil chemistry