Nordic Conference on Environment and Development Saltsjöbaden, Stockholm, Sweden, Carlsson, I., Brundtland, G. H., & Ramphal, S. S. (1987). Towards sustainable development: Fourteen case-studies prepared by African and Asian journalists for the Nordic Conference on Environment and Development at Saltsjöbaden, Stockholm, 8-10 May 1987 : with overview chapters. Panos Institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNordic Conference on Environment and Development Saltsjöbaden, Stockholm, Sweden, Ingvar Carlsson, Gro Harlem Brundtland, এবং S. S. Ramphal. Towards Sustainable Development: Fourteen Case-studies Prepared by African and Asian Journalists for the Nordic Conference on Environment and Development at Saltsjöbaden, Stockholm, 8-10 May 1987 : With Overview Chapters. London: Panos Institute, 1987.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNordic Conference on Environment and Development Saltsjöbaden, Stockholm, Sweden, et al. Towards Sustainable Development: Fourteen Case-studies Prepared by African and Asian Journalists for the Nordic Conference on Environment and Development at Saltsjöbaden, Stockholm, 8-10 May 1987 : With Overview Chapters. Panos Institute, 1987.