Cita APA

Cortez V., R., & Zavala L., J. (2002). Health returns of the older adult population.

Citación estilo Chicago

Cortez V., Rafael, y José Zavala L. Health Returns of the Older Adult Population. 2002.

Cita MLA

Cortez V., Rafael, y José Zavala L. Health Returns of the Older Adult Population. 2002.