Cita APA

Bromley, D. B. (1974). The psychology of human ageing (2nd ed.). Penguin.

Citación estilo Chicago

Bromley, Dennis Basil. The Psychology of Human Ageing. 2nd ed. Harmondsworth, Middlesex, Eng: Penguin, 1974.

Cita MLA

Bromley, Dennis Basil. The Psychology of Human Ageing. 2nd ed. Penguin, 1974.