APA-viite (7. p.)

Open University, Johnson, J., & Slater, R. (1993). Ageing and later life. Sage Publications.

Chicago-viite (17. p.)

Open University, Julia Johnson, ja Robert Slater. Ageing and Later Life. London ; Thousand Oaks, Calif.: Sage Publications, 1993.

MLA-viite (8. p.)

Open University, et al. Ageing and Later Life. Sage Publications, 1993.