Mettrick Hal <br/><br/>
Development oriented research in agriculture :  An ICRA textbook / 
Hal Mettrick 
 - Wageningen :  ICRA,  1993. 
 - 291 p. :  fig., tab.,  25 cm. 
<br/><br/>Contains appendix 
<br/><br/><label>ISBN: </label>90-73041-16-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture