Dethier,Jean-Jacques Janvry,Alain de <br/><br/>
Technological innovation in agriculture  The political economy of its rate and bias / Alain de Janvry and Jean-Jacques Dethier 

 - Washington,D.C  World Bank  1985 
 - vii, 90p. 
 - Consultative group on international agricultural research study paper 1 .