Cathcart, W. G. (2000). Learning mathematics in elementary and middle schools. Merrill.
芝加哥风格引文Cathcart, W. George. Learning Mathematics in Elementary and Middle Schools. Upper Saddle River, N.J: Merrill, 2000.
MLA引文Cathcart, W. George. Learning Mathematics in Elementary and Middle Schools. Merrill, 2000.
警告：这些引文格式不一定是100％准确.