Perkins, R. (1972). Leader's guide to christian ethics for mordern man (ed.). John knox press.
芝加哥风格引文Perkins, Richard. Leader's Guide to Christian Ethics for Mordern Man. ed. Virginia: John knox press, 1972.
MLA引文Perkins, Richard. Leader's Guide to Christian Ethics for Mordern Man. ed. John knox press, 1972.
警告：这些引文格式不一定是100％准确.