Cita APA (7th ed.)

Natividad, J. N., Kuan, L. G., Bonito, S. R., Balabagno, A. O., Manahan, L. T., & Añonuevo, C. A. (2005). Caring for the older person. The Authors and the UP Open University.

Cita Chicago (17th ed.)

Natividad, Josefina N., Letty G. Kuan, Sheila R. Bonito, Araceli O. Balabagno, Lydia T. Manahan, i Cora A. Añonuevo. Caring for the Older Person. Quezon City: The Authors and the UP Open University, 2005.

Cita MLA (9th ed.)

Natividad, Josefina N., et al. Caring for the Older Person. The Authors and the UP Open University, 2005.