Clarke, R., & Timberlake, L. (1982). Stockholm Plus Ten: Promises, Promises? The decade since 1972 UN Environment Conference. London: International Institute for Environment and Development [Obtained from Earthscan].
Παραπομπή Chicago StyleClarke, Robin, and Lloyd Timberlake. Stockholm Plus Ten: Promises, Promises? The Decade Since 1972 UN Environment Conference. London: International Institute for Environment and Development [Obtained from Earthscan], 1982.
Παραπομπή MLAClarke, Robin, and Lloyd Timberlake. Stockholm Plus Ten: Promises, Promises? The Decade Since 1972 UN Environment Conference. London: International Institute for Environment and Development [Obtained from Earthscan], 1982.
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