Alston, Julian M. <br/><br/>
Science under scarcity :  principles and practice for agricultural research evaluation and priority setting 
/by Julian M. Alston, George W. Norton and Philip G. Pardey 
 - Ithaca, N.Y. :  Cornell University Press,  1995. 
 - 585 p. :  gráfs. 
 - Food systems and agrarian change .
<br/><br/><label>ISBN: </label>0801429374 
<br/><br/><label>LCCN: </label>75014 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Costos.<br/>Agricultura--Investigación.
<br/><br/><label>Dewey Class. No.: </label>630.72  / A55