South Asia Co-operative Environment Programme, United Nations Environment Programme, Norway. Direktoratet for utviklingshjelp, Environmental Management Seminar for South Asia, & Wijayadasa, K. H. J. (1997). Harmonising environment and development in South Asia. South Asia Co-operative Environment Programme.
Chicago-viite (17. p.)South Asia Co-operative Environment Programme, United Nations Environment Programme, Norway. Direktoratet for utviklingshjelp, Environmental Management Seminar for South Asia, ja K. H. J. Wijayadasa. Harmonising Environment and Development in South Asia. Colombo: South Asia Co-operative Environment Programme, 1997.
MLA-viite (8. p.)South Asia Co-operative Environment Programme, et al. Harmonising Environment and Development in South Asia. South Asia Co-operative Environment Programme, 1997.