Não informado. (1964). Geographica. University of Malaya, Department of Geography.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Geographica. Kuala Lumpur: University of Malaya, Department of Geography, 1964.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Geographica. University of Malaya, Department of Geography, 1964.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.