Managerial economics 
By D.N. Dwivedi 
 - 20 th ed. 
 - Delhi:  Vikas publishing house pvt ltd.,  1994. 
 - xvi,426p. 
<br/><br/><label>ISBN: </label>0-7069-4248-5 
<br/><br/><label>Subjects--Index Terms: </label>Production Managerial economics 
<br/><br/><label>Dewey Class. No.: </label>338.7