Babbie, E. (1989). The practice of social research (5th.ed.). Wadsworth.
芝加哥风格引文Babbie, Earl. The Practice of Social Research. 5th.ed. Belmont: Wadsworth, 1989.
MLA引文Babbie, Earl. The Practice of Social Research. 5th.ed. Wadsworth, 1989.
警告：这些引文格式不一定是100％准确.