Cita APA (7th ed.)

Silva, R., & Guruge, A. W. P. (1998). The safeguarding of the cultural triangle of Sri Lanka: Steady progress and future prospects. Central Cultural Fund, Ministry of Cultural Affairs.

Cita Chicago (17th ed.)

Silva, Roland, i Ananda W. P. Guruge. The Safeguarding of the Cultural Triangle of Sri Lanka: Steady Progress and Future Prospects. Colombo: Central Cultural Fund, Ministry of Cultural Affairs, 1998.

Cita MLA (9th ed.)

Silva, Roland, i Ananda W. P. Guruge. The Safeguarding of the Cultural Triangle of Sri Lanka: Steady Progress and Future Prospects. Central Cultural Fund, Ministry of Cultural Affairs, 1998.