516.16 GHOSH, K . M . CO-ORDINATE GEOMETRY / / K . M . GHOSH & G . DEB RAY. - 2ND ED. - CALCUTTA: : DASGUPTA & CO,, 1976. x , 254 , 182 , 115 P.. : 18.50/- * GEOMETRY - CO-ORDINATE. * DEB RAY, G . * Title