Cita APA (7th ed.)

Diyasena, W. (1976). Pre-vocational education in Sri Lanka. Unesco Press.

Cita Chicago (17th ed.)

Diyasena, W. Pre-vocational Education in Sri Lanka. Paris: Unesco Press, 1976.

Cita MLA (8th ed.)

Diyasena, W. Pre-vocational Education in Sri Lanka. Unesco Press, 1976.