Certo. <br/><br/>
Sm modern management irm / 
Certo. 
 - 6th edition ed. 
 - [S.l.] :  Allyn & Bacon,  1994. 
 - 1 v. (unpaged) 
<br/><br/><label>ISBN: </label>0205153399 (paperback) 9780205153398 (paperback)