Zimmermann, W., & Cunningham, S. (1991). Visualization in teaching and learning mathematics. The Mathematical Association of America.
芝加哥风格引文Zimmermann, Walter, 与 Steve Cunningham. Visualization in Teaching and Learning Mathematics. Washington, D.C: The Mathematical Association of America, 1991.
MLA引文Zimmermann, Walter, 与 Steve Cunningham. Visualization in Teaching and Learning Mathematics. The Mathematical Association of America, 1991.
警告：这些引文格式不一定是100％准确.