APA-viite (7. p.)

Lee, R. M. (2000). Unobtrusive methods in social research. Open University Press.

Chicago-viite (17. p.)

Lee, Raymond M. Unobtrusive Methods in Social Research. Buckingham [England]: Open University Press, 2000.

MLA-viite (9. p.)

Lee, Raymond M. Unobtrusive Methods in Social Research. Open University Press, 2000.