Smiller <br/><br/>
Measuring the effects of advances in knowledge: an introduction to the concept of technical progress 

 - n.p.  World Bank  1979 
 - 38p.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World Bank
<br/><br/><label>LC Class. No.: </label>IDS HC407.S6