APA引文

CHRISTIE, A. (1993). POIROT'S EARLY CASES. HARPER COLLINS PUBLISHERS.

芝加哥风格引文

CHRISTIE, AGATHA. POIROT'S EARLY CASES. LONDON: HARPER COLLINS PUBLISHERS, 1993.

MLA引文

CHRISTIE, AGATHA. POIROT'S EARLY CASES. HARPER COLLINS PUBLISHERS, 1993.

警告：这些引文格式不一定是100％准确.