APA (7e ed.) Bronvermelding

Natividad, J. N., Bonito, S. R., Manahan, L. T., Kuan, L. G., Balabagno, A. O., & Anonuevo, C. A. (2005). Caring for the older person. University of the Philippines Open University.

Chicago (17e ed.) Bronvermelding

Natividad, Josefina N., Sheila R. Bonito, Lydia T. Manahan, Letty G. Kuan, Araceli O. Balabagno, en Cora A. Anonuevo. Caring for the Older Person. Quezon City: University of the Philippines Open University, 2005.

MLA (9e ed.) Bronvermelding

Natividad, Josefina N., et al. Caring for the Older Person. University of the Philippines Open University, 2005.