Não informado. (1981). Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey.
Chicago-Zitierstil (17. Ausg.)Não informado. Bulletin of the Central Geological Survey. Taipei: Ministry of Economic Affairs, Central Geological Survey, 1981.
MLA-Zitierstil (8. Ausg.)Não informado. Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.