Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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