Não informado. (1981). Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Central Geological Survey. Taipei: Ministry of Economic Affairs, Central Geological Survey, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey, 1981.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.