Gunther, William D. <br/><br/>
Instructor's manual and test item file for Edwin Mansfield's microeconomics and applications / 
by William D. Gunther and Paul M. Sommers. 
 - 7th ed. 
 - New York, N.Y. :  W.W. Norton & Company,  1991. 
 - viii, 503 p. 
<br/><br/><label>ISBN: </label>0393960803 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microeconomics.