Singapore. Timber Industry Board. Annual report of the Timber Industry Board. Timber Industry Board.
Chicago-referens (17:e uppl.)Singapore. Timber Industry Board. Annual Report of the Timber Industry Board. Singapore: Timber Industry Board.
MLA-referens (8:e uppl.)Singapore. Timber Industry Board. Annual Report of the Timber Industry Board. Timber Industry Board.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.