Economic concepts : a programmed approach 
Bingham, Robert C. 
 - 10th ed. / revised by William Henry Pope. 
 -  McGraw-Hill,  1993 
 - xi, 448 p. 
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<br/><br/><label>ISBN: </label>0-07-045591-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics -- Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>330.077 B52e 1993