Bell, R. J. T. (1964). Coordinate solid geometry: Being chapters I-IX of "An elementary treatise on coordinate geometry of three dimensions". Macmillan and co., limited.
শিকাগো স্টাইলে সাইটেশনBell, Robert John Tainsh. Coordinate Solid Geometry: Being Chapters I-IX of "An Elementary Treatise on Coordinate Geometry of Three Dimensions". London: Macmillan and co., limited, 1964.
এমএলএ সাইটেশনBell, Robert John Tainsh. Coordinate Solid Geometry: Being Chapters I-IX of "An Elementary Treatise on Coordinate Geometry of Three Dimensions". Macmillan and co., limited, 1964.
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