ebrary, Inc, & Coulmas, F. (1986). Direct and indirect speech. Mouton de Gruyter.
芝加哥风格引文ebrary, Inc, 与 Florian Coulmas. Direct and Indirect Speech. Berlin ; New York: Mouton de Gruyter, 1986.
MLA引文ebrary, Inc, 与 Florian Coulmas. Direct and Indirect Speech. Mouton de Gruyter, 1986.
警告：这些引文格式不一定是100％准确.