Berko Roy M <br/><br/>
Communicating A Social And Career Focus Roy M Berko Andrew Wolvin And Darlyn R Wolvin 

 -  Boston : Houghton Mifflin 1998. 
 - 436 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>0395868874(Pbk)