Williamson, B. (1955). An elementary treatise on the Integral Calculus. Scientific Book Co.
芝加哥风格引文Williamson, Benjamin. An Elementary Treatise on the Integral Calculus. Patna: Scientific Book Co, 1955.
MLA引文Williamson, Benjamin. An Elementary Treatise on the Integral Calculus. Scientific Book Co, 1955.
警告：这些引文格式不一定是100％准确.