Robinson, Gilbert Wooding. <br/><br/>
Soils ; their origin, constitution, and classification ; an introduction to pedology 

 - 2 ed. 
 - London :  Thomas Murby,  1936 
 - 442 p.  : ilus. 
<br/><br/><label>LCCN: </label>49436 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>631.4  / R62 1936