co-ordinate geometry of three dimensions Nand, Brahma. creator Tyagi, B S. joint author. Sharma, Bhu Dev. joint author. text ii Delhi Kader Nath Ram Nath 1869 monographic eng

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iv, 614 p. : ill. ; 22 cm. byBrahma Nand , B S Tyagi. & Bhu Dev Sharma. "Designed as a text-book for colleges and scientific schools." Geometry, Analytic 516.16 BD-KhUET 120429