APA
American Studies Association of Sri Lanka, . (1987). United States and Sri Lanka Constitutions: A Comparative Study. Sri Lanka: American Studies Association of Sri Lanka.
Chicago
American Studies Association of Sri Lanka, . 1987. United States and Sri Lanka Constitutions: A Comparative Study. Sri Lanka: American Studies Association of Sri Lanka.
Harvard
American Studies Association of Sri Lanka, . (1987). United States and Sri Lanka Constitutions: A Comparative Study. Sri Lanka: American Studies Association of Sri Lanka.
MLA
American Studies Association of Sri Lanka, . United States and Sri Lanka Constitutions: A Comparative Study. Sri Lanka: American Studies Association of Sri Lanka. 1987.