CHRISTIE, A. (1994). THE SECRET OF THE CHIMNEYS. HARPER COLLINS PUBLISHERS.
芝加哥风格引文CHRISTIE, AGATHA. THE SECRET OF THE CHIMNEYS. LONDON: HARPER COLLINS PUBLISHERS, 1994.
MLA引文CHRISTIE, AGATHA. THE SECRET OF THE CHIMNEYS. HARPER COLLINS PUBLISHERS, 1994.
警告：这些引文格式不一定是100％准确.