Baldock, D., & Hewett, J. (1989). Possible European community initiatives in relation to the tropical timber trade: A WWF International discussion paper. Londen: IEEP.
Lua i Stíl Chicago (17ú heag.)Baldock, David, agus Jonathan Hewett. Possible European Community Initiatives in Relation to the Tropical Timber Trade: A WWF International Discussion Paper. Londen: IEEP, 1989.
Lua MLA (8ú heag.)Baldock, David, agus Jonathan Hewett. Possible European Community Initiatives in Relation to the Tropical Timber Trade: A WWF International Discussion Paper. Londen: IEEP, 1989.
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