Cita APA (7a ed.)

Isaacs, B. (1992). The challenge of geriatric medicine. Oxford University Press.

Cita Chicago Style (17a ed.)

Isaacs, Bernard. The Challenge of Geriatric Medicine. Oxford: Oxford University Press, 1992.

Cita MLA (9a ed.)

Isaacs, Bernard. The Challenge of Geriatric Medicine. Oxford University Press, 1992.