Citação norma APA

Holdgate, M. W., & Spurgeon, D. (1982). The world environment 1972-1982: A report by the United Nations Environment Programme. Tycooly International Pub. Ltd.

Citação norma Chicago

Holdgate, Martin W., and David Spurgeon. The World Environment 1972-1982: A Report by the United Nations Environment Programme. Dublin: Tycooly International Pub. Ltd, 1982.

Citação norma MLA

Holdgate, Martin W., and David Spurgeon. The World Environment 1972-1982: A Report by the United Nations Environment Programme. Tycooly International Pub. Ltd, 1982.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.