APA (7e ed.) Bronvermelding

Não informado. Philippine Abstracts. National Institute of Science and Technology, Division of Documentation.

Chicago (17e ed.) Bronvermelding

Não informado. Philippine Abstracts. Manila: National Institute of Science and Technology, Division of Documentation.

MLA (8e ed.) Bronvermelding

Não informado. Philippine Abstracts. National Institute of Science and Technology, Division of Documentation.

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