Lumsden, Keith G. <br/><br/>
Microeconomics :  a programmed book / 
K. Lumsden, R. Attiyeh, G. L. Bach. 
 - Englewood Cliffs :  Prentice-Hall,  1966. 
 - ix, 179 p. :  graphs, tables, formulae ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics--Programmed instruction