Henderson, J. Vernon  <br/><br/>
Principles of microeconomics/ 
J. Vernon Henderson and William Poole 
 - Lexington :  D.C. Heath ,  c1991 
 - xxx,630p. ;  26cm. 
<br/><br/>Includes index. Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0669144924 (pbk.)