Shulman, Lawrence.
The skills of helping: individuals, families, and groups /
Lawrence Shulman 
. - 3rd edition 
. - Itasca : F.E. Peacock Publishers, Inc.,  1992 
. - розд. паг.  schem.  24 см. 
<br/>К.: Бібліогр. : c. B-1-B9, Index 
<br/><label>  ISBN: </label>0-87581-363-1