APA (7. basım) Alıntı

Babbie, E. R. (1990). Survey research methods (2nd ed.). California.

Chicago Style (17. basım) Atıf

Babbie, Earl R. Survey Research Methods. 2nd ed. Belmont: California, 1990.

MLA (9th ed.) Atıf

Babbie, Earl R. Survey Research Methods. 2nd ed. California, 1990.