Welford, W. T. (1974). Aberrations of the symmetrical optical systems. Academic Press.
Chicago Style (17th ed.) CitationWelford, W. T. Aberrations of the Symmetrical Optical Systems. London: Academic Press, 1974.
MLA (9th ed.) CitationWelford, W. T. Aberrations of the Symmetrical Optical Systems. Academic Press, 1974.
Warning: These citations may not always be 100% accurate.