Wood Extraction With Oxen  And Agriculture Tractors :  FAO Forestry Paper /   English. 
Food and Agriculture Organization of the United Nations ,E . Otavo  Rodriguez . 
 - Rome :  Food and Agriculture Organization of the United Nations,  1986. 
 - xv,92p.:  ill.;  20cm. 
<br/><br/><label>ISBN: </label>9251021295 
<br/><br/><label>Dewey Class. No.: </label>631.372  / ROD