Navaratne,P. <br/><br/>
Collectives Agreements In  Sri Lanka /  English . 
P. Navaratne . 
 - Colombo :  Friedrich - Ebert - Stiftung ,  1987. 
 - xii,192p.:  ill.;  21cm. 
<br/><br/><label>Dewey Class. No.: </label>331.89095493  / NAV