APA (7e ed.) Bronvermelding

Sen, D. (1964). Geometry & co-ordinate Geometry. Educational Pub. Co.

Chicago (17e ed.) Bronvermelding

Sen, D. Geometry & Co-ordinate Geometry. Bombay: Educational Pub. Co, 1964.

MLA (9e ed.) Bronvermelding

Sen, D. Geometry & Co-ordinate Geometry. Educational Pub. Co, 1964.