Cita APA (7a ed.)

Johnson, J., & Slater, R. (1993). Ageing and later life. Sage [etc.].

Cita Chicago Style (17a ed.)

Johnson, Julia, y Robert Slater. Ageing and Later Life. London [etc.]: Sage [etc.], 1993.

Cita MLA (9a ed.)

Johnson, Julia, y Robert Slater. Ageing and Later Life. Sage [etc.], 1993.