Heumann, G. W. (1961). Magnetic control of industrial motors. Wiley.
芝加哥风格引文Heumann, Gerhart W. Magnetic Control of Industrial Motors. New York: Wiley, 1961.
MLA引文Heumann, Gerhart W. Magnetic Control of Industrial Motors. Wiley, 1961.
警告：这些引文格式不一定是100％准确.