Cita APA (7a ed.)

Callahan, D., Meulen, R. H. J. t., & Topinková, E. (1995). A world growing old: The coming health care challenges. Georgetown University Press.

Cita Chicago Style (17a ed.)

Callahan, Daniel, R. H. J. ter Meulen, y Eva Topinková. A World Growing Old: The Coming Health Care Challenges. Washington, D.C.: Georgetown University Press, 1995.

Cita MLA (9a ed.)

Callahan, Daniel, et al. A World Growing Old: The Coming Health Care Challenges. Georgetown University Press, 1995.