International / cross-cultural extention methods  
/ edited by William M. Rivera and Susan G. Schram. 
 - London :  Croom Helm,  1987. 
 - 294 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>0709942389 
<br/><br/><label>Dewey Class. No.: </label>630.715 RIV