Graduate & Professional programs : An overview. 2001. - 35è éd 

. - [Washington]  : Peterson's, Thomson learning, 2001
. - 145 p.  : ill., couv. ill. en coul.  ; 29 cm. 
<br/><br/><label>ISBN: </label>1520-4359  ; ISBN 07689-0371-8 
<br/><br/><label>Universal Decimal Class. No.: </label>300.058