Chakravorty, J. G. (2010). Differential equations (9th ed.). U.N. Dhur & Sons.
Cita Chicago (17th ed.)Chakravorty, J. G. Differential Equations. 9th ed. Kolkata: U.N. Dhur & Sons, 2010.
Cita MLA (9th ed.)Chakravorty, J. G. Differential Equations. 9th ed. U.N. Dhur & Sons, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.