Robinson, Gilbert Wooding <br/><br/>
Mother Earth 

 - London :  T.Murby,  1937. 
 - 202 p. :  il. ;  19 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Edafología<br/>Humus
<br/><br/><label>Subjects--Index Terms: </label>Suelo 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>631.4