APA (7e ed.) Bronvermelding

Philippines (Republic). The National Library. (1974). Philippine national bibliography. Jan.-Feb. 1974-. The National Library.

Chicago (17e ed.) Bronvermelding

Philippines (Republic). The National Library. Philippine National Bibliography. Jan.-Feb. 1974-. Manila: The National Library, 1974.

MLA (9e ed.) Bronvermelding

Philippines (Republic). The National Library. Philippine National Bibliography. Jan.-Feb. 1974-. The National Library, 1974.

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