Winkelman, Don. <br/><br/>
The traditional farmer :  maximization and mechanization / 
by Don Winkelman. 
 - Paris :  Development Centre, OECD,  1972. 
 - v, 94 p. :  ill. ;  25 cm, 
 - Development Centre studies employment series ;  no. 7 .
<br/><br/>Bibliography: p. 93-94. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Labor productivity.<br/>Agriculture--Economic aspects--Mathematical models.<br/>Farm mechanization.<br/>Family farms--Mexico.