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Lua i Stíl Chicago (17ú heag.)Brünig, E. F. Ecological Studies in the Kerangas Forests of Sarawak and Brunei. Kuching, Sarawak: Borneo Literature Bureau for Sarawak Forest Dept., 1974.
Lua MLA (8ú heag.)Brünig, E. F. Ecological Studies in the Kerangas Forests of Sarawak and Brunei. Borneo Literature Bureau for Sarawak Forest Dept., 1974.
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