Sharma, B. D. (1985). Differential Calculus. Kedar Nath Ram Nath.
Cita Chicago (17th ed.)Sharma, B. D. Differential Calculus. Meerut: Kedar Nath Ram Nath, 1985.
Cita MLA (9th ed.)Sharma, B. D. Differential Calculus. Kedar Nath Ram Nath, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.