APA (7e ed.) Bronvermelding

Não informado. (1981). Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey.

Chicago (17e ed.) Bronvermelding

Não informado. Bulletin of the Central Geological Survey. Taipei: Ministry of Economic Affairs, Central Geological Survey, 1981.

MLA (8e ed.) Bronvermelding

Não informado. Bulletin of the Central Geological Survey. Ministry of Economic Affairs, Central Geological Survey, 1981.

Let op: Deze citaties zijn niet altijd 100% accuraat.