APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (8. Ausg.)

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

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.