The brain drain  emigration and return : findings of a UNITAR multinational comparative survey of professional personal of developing countries who study abroad 
by William A. Glaser ; with the assistance of G. Christopher Habers.  
 - Oxford ;  New York [etc.]  Pergamon Press  1978.  
 - XLVII, 324 p.  ill.  21 cm. 
 - UNITAR research reports  22 Unitar Study .
<br/><br/><label>ISBN: </label>0080224156 (br.) 0080224199 (rel.) 9780080224152 (br.) 9780080224190 (rel.)