APA-viite (7. p.)

Fearnsides, W., & Bulman, O. (1966). The psychology of human ageing. Penguin Books.

Chicago-viite (17. p.)

Fearnsides, W.G, ja O.M.B Bulman. The Psychology of Human Ageing. Harmondsworth, Middlesex, England: Penguin Books, 1966.

MLA-viite (8. p.)

Fearnsides, W.G, ja O.M.B Bulman. The Psychology of Human Ageing. Penguin Books, 1966.