Marga Institute. (1974). Welfare and growth: A case study of Sri Lanka prepared for the UNRISD project 'The unified approach to development planning & analysis'. Marga Institute.
Lua i Stíl Chicago (17ú heag.)Marga Institute. Welfare and Growth: A Case Study of Sri Lanka Prepared for the UNRISD Project 'The Unified Approach to Development Planning & Analysis'. Colombo: Marga Institute, 1974.
Lua MLA (9ú heag.)Marga Institute. Welfare and Growth: A Case Study of Sri Lanka Prepared for the UNRISD Project 'The Unified Approach to Development Planning & Analysis'. Marga Institute, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.