Cita APA (7th ed.)

Ariyaratna, A. T., & Ratnapala, N. (1980). Collected works. Sarvodaya Research Institute.

Cita Chicago (17th ed.)

Ariyaratna, A. T., i Nandasena Ratnapala. Collected Works. Dehiwala, Sri Lanka: Sarvodaya Research Institute, 1980.

Cita MLA (8th ed.)

Ariyaratna, A. T., i Nandasena Ratnapala. Collected Works. Sarvodaya Research Institute, 1980.