Style de citation APA (7e éd.)

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.

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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