International Labour Office. <br/><br/>
Year Book of Labour statistics 1991  [Books]. 
International Labour Office 
 - 50th ed. 
 - Geneva  International Labour Office  1990 
 - Pages: 1094 
<br/><br/> Notes Registration no: 2293777. 
<br/><br/><label>ISBN: </label>922006426X  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Labor -- Statistics -- Periodicals.
<br/><br/><label>Dewey Class. No.: </label>HD/4826  / INT