Clapham, C. B. (1921). Metric system for engineers. Chapman & Hall.
芝加哥风格引文Clapham, Charles B. Metric System for Engineers. London: Chapman & Hall, 1921.
MLA引文Clapham, Charles B. Metric System for Engineers. Chapman & Hall, 1921.
警告：这些引文格式不一定是100％准确.