Welford, W. T. (1989). Aberrations of optical systems. A. Hilger.
芝加哥风格引文Welford, W. T. Aberrations of Optical Systems. Bristol ; Philadelphia: A. Hilger, 1989.
MLA引文Welford, W. T. Aberrations of Optical Systems. A. Hilger, 1989.
警告：这些引文格式不一定是100％准确.
