Prasad, Laji Analytical solid geometry / Lalji Prasad - 7th rev. and enl. ed. - Patna : Bharati Bhawan, 1970 - ix, 259 p. : ill. ; 22 cm. ISBN: USD 6.50 Subjects--Topical Terms: Vector analysisCo-ordinatesGeometry, SolidEquations Dewey Class. No.: 516