Willoughby, S. S. (1981). Measuring bowser: Thinking story book. Open Court Publishers.
芝加哥风格引文Willoughby, Stephen S. Measuring Bowser: Thinking Story Book. Illinois: Open Court Publishers, 1981.
MLA引文Willoughby, Stephen S. Measuring Bowser: Thinking Story Book. Open Court Publishers, 1981.
警告：这些引文格式不一定是100％准确.