APA
(1989). Parliamentary General Election of Sri Lanka 15 February, 1989. : The International Observer Group Parliamentary General Election.
Chicago
1989. Parliamentary General Election of Sri Lanka 15 February, 1989. : The International Observer Group Parliamentary General Election.
Harvard
(1989). Parliamentary General Election of Sri Lanka 15 February, 1989. : The International Observer Group Parliamentary General Election.
MLA
Parliamentary General Election of Sri Lanka 15 February, 1989. : The International Observer Group Parliamentary General Election. 1989.