Yerima, A. (2013). Heart of stone: Drama. Kraftgriots.
芝加哥风格引文Yerima, Ahmed. Heart of Stone: Drama. Oyo State, Nigeria: Kraftgriots, 2013.
MLA引文Yerima, Ahmed. Heart of Stone: Drama. Kraftgriots, 2013.
警告：这些引文格式不一定是100％准确.
APA引文