APA (7. basım) Alıntı

De Blij, H. J. (1973). Systematic political geography (2nd ed.). Wiley.

Chicago Style (17. basım) Atıf

De Blij, Harm J. Systematic Political Geography. 2nd ed. New York: Wiley, 1973.

MLA (9th ed.) Atıf

De Blij, Harm J. Systematic Political Geography. 2nd ed. Wiley, 1973.