APA (7e ed.) Bronvermelding

Não informado. (1907). Philippine Journal of Science. National Science Development Board.

Chicago (17e ed.) Bronvermelding

Não informado. Philippine Journal of Science. Manila: National Science Development Board, 1907.

MLA (8e ed.) Bronvermelding

Não informado. Philippine Journal of Science. National Science Development Board, 1907.

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