Kellogg, Charles E. <br/><br/>
Modern soil science 

<br/><br/> Sobretiro de : Smithsonian Report for 1949 pp. 227-246, 1950 
<br/><br/><label>LCCN: </label>27281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos.