(1999). Foreign relations of Sri Lanka. Library of Congress Office ; Library of Congress Photoduplication Service.
Chicago-referens (17:e uppl.)Foreign Relations of Sri Lanka. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1999.
MLA-referens (8:e uppl.)Foreign Relations of Sri Lanka. Library of Congress Office ; Library of Congress Photoduplication Service, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.