APA (7th ed.) Citation

Amerasinghe, C. F., & Sumanasekera, B. (1994). Life is simply a duty. Sarvodaya Book Publishing Services.

Chicago Style (17th ed.) Citation

Amerasinghe, C. F., and Banda Sumanasekera. Life Is Simply a Duty. Ratmalana: Sarvodaya Book Publishing Services, 1994.

MLA (9th ed.) Citation

Amerasinghe, C. F., and Banda Sumanasekera. Life Is Simply a Duty. Sarvodaya Book Publishing Services, 1994.

Warning: These citations may not always be 100% accurate.