Sen, D. (1964). Geometry & co-ordinate Geometry. Educational Pub. Co.
Chicagoスタイル(17版)引用形式Sen, D. Geometry & Co-ordinate Geometry. Bombay: Educational Pub. Co, 1964.
MLA(9版)引用形式Sen, D. Geometry & Co-ordinate Geometry. Educational Pub. Co, 1964.
警告: この引用は必ずしも正確ではありません.