Cita APA (7a ed.)
Babbie, E. (1995). The practice of social research (7th.ed.). Wadsworth.
Cita Chicago Style (17a ed.)
Babbie, Earl. The Practice of Social Research. 7th.ed. Belmont: Wadsworth, 1995.
Cita MLA (9a ed.)
Babbie, Earl. The Practice of Social Research. 7th.ed. Wadsworth, 1995.
Precaución: Estas citas no son 100% exactas.