APA-viite (7. p.)

Clifford, N. J., & Valentine, G. (2010). Key methods in geography (2nd ed.). Sage.

Chicago-viite (17. p.)

Clifford, Nicholas J., ja Gill Valentine. Key Methods in Geography. 2nd ed. Thousand Oaks, CA: Sage, 2010.

MLA-viite (9. p.)

Clifford, Nicholas J., ja Gill Valentine. Key Methods in Geography. 2nd ed. Sage, 2010.