Labranza secundaria 

 - Mexico :   Trillas,   1994 
 - 64 p : il 
 - Mecánica, agrícola, 40 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>LABRANZA
<br/><br/><label>Dewey Class. No.: </label>631.51 L117