United Nations. Environment Programme, Holdgate, M. W., Kassas, M., White, G. F., & El-Hinnawi, E. E. (1982). The World environment 1972-1982 : a report / by the United Nations Environment Programme ; edited by Martin W. Holdgate, Mohammed Kassas, Gilbert F. White with the assistance of David Spurgeon ; study co-ordinator Essam El-Hinnawi: A report. Published for the United Nations Environment Programme by Tycooly International.
Chicago Style (17th ed.) CitationUnited Nations. Environment Programme, M. W. Holdgate, Mohammed Kassas, Gilbert F. White, and Essam E. El-Hinnawi. The World Environment 1972-1982 : A Report / by the United Nations Environment Programme ; Edited by Martin W. Holdgate, Mohammed Kassas, Gilbert F. White with the Assistance of David Spurgeon ; Study Co-ordinator Essam El-Hinnawi: A Report. Dublin: Published for the United Nations Environment Programme by Tycooly International, 1982.
MLA (9th ed.) CitationUnited Nations. Environment Programme, et al. The World Environment 1972-1982 : A Report / by the United Nations Environment Programme ; Edited by Martin W. Holdgate, Mohammed Kassas, Gilbert F. White with the Assistance of David Spurgeon ; Study Co-ordinator Essam El-Hinnawi: A Report. Published for the United Nations Environment Programme by Tycooly International, 1982.