Tillage and seeding practices and machines for cro 

 - Rome  Food and Agriculture Organization         1971 
 - viii, 53p. Bib p. 52-53,Appendix p. 43-51  cm. 
 - Its Agricultural Development paper,92 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J:12).1911.N7, L1/UN