APA-viite (7. p.)

De Blij, H. J., & Muller, P. O. (2005). Concepts and regions in geography (2nd ed.). Wiley.

Chicago-viite (17. p.)

De Blij, Harm J., ja Peter O. Muller. Concepts and Regions in Geography. 2nd ed. Hoboken, N.J: Wiley, 2005.

MLA-viite (9. p.)

De Blij, Harm J., ja Peter O. Muller. Concepts and Regions in Geography. 2nd ed. Wiley, 2005.