Colombo Plan Bureau. Development perspectives: Country issues, papers submitted by member governments to the first- Consultative Committee Meeting. Colombo Plan Bureau.
Cita Chicago (17th ed.)Colombo Plan Bureau. Development Perspectives: Country Issues, Papers Submitted by Member Governments to the First- Consultative Committee Meeting. Colombo, Sri Lanka: Colombo Plan Bureau.
Cita MLA (9th ed.)Colombo Plan Bureau. Development Perspectives: Country Issues, Papers Submitted by Member Governments to the First- Consultative Committee Meeting. Colombo Plan Bureau.
Atenció: Aquestes cites poden no estar 100% correctes.