Roser, N. L. (1987). Laidlaw spelling. Laidlaw Brothers.
芝加哥风格引文Roser, Nancy L. Laidlaw Spelling. Illinois: Laidlaw Brothers, 1987.
MLA引文Roser, Nancy L. Laidlaw Spelling. Laidlaw Brothers, 1987.
警告：这些引文格式不一定是100％准确.
APA引文