Sharma, B. D. (2005). Coordinate Geometry. Kedar Nath Ram Nath.
Cita Chicago (17th ed.)Sharma, B. D. Coordinate Geometry. Meerut: Kedar Nath Ram Nath, 2005.
Cita MLA (9th ed.)Sharma, B. D. Coordinate Geometry. Kedar Nath Ram Nath, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.