Cita APA (7a ed.)

Alvis-Guzmán, N., Alvis-Estrada, L., Medina-Fuentes, A., & Murillo-Ibáñez, M. (2009). Access conditions to the health care system for the citizens of Cartagena de Indias. Universidad de Cartagena.

Cita Chicago Style (17a ed.)

Alvis-Guzmán, Nelson, Luis Alvis-Estrada, Aura Medina-Fuentes, y Maria Murillo-Ibáñez. Access Conditions to the Health Care System for the Citizens of Cartagena De Indias. Universidad de Cartagena, 2009.

Cita MLA (9a ed.)

Alvis-Guzmán, Nelson, et al. Access Conditions to the Health Care System for the Citizens of Cartagena De Indias. Universidad de Cartagena, 2009.