The labour force survey / 
Bureau of Statistics. 
 - Da-es-Salaam :   Presidents office Planning Commission,   1993- 
 -   ill. ;   29 cm. 
 - Annual 
 - (June 1993)- 
<br/><br/>  Latest issue consulted: (June 1993). 
<br/><br/><label>Dewey Class. No.: </label>331.1