Handbook on data processing methods. 

 - Rome  FAO            1962 
 - viii,139p.  cm. 
<br/><br/> Appendix :131-139p. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>D6,9(B).1(X).N62, K2/UN