Ladd, George W <br/><br/>
Imagination in research : an economist's view 

 - Ames  Lowa state University press  1987 
 - viii, 146 p. 
<br/><br/><label>ISBN: </label>813809878 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research-methodology
<br/><br/><label>Dewey Class. No.: </label>1.4  / LAD