Sigmond, Alexius A. J. de. <br/><br/>
The principles of soil science 

 - London :  Thomas Murpy,  1938 
 - 362 p.  : ilus. 
<br/><br/><label>LCCN: </label>54475 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos.
<br/><br/><label>Dewey Class. No.: </label>631.4  / S53