Cita APA (7th ed.)

Sharma, J. N., & Singh, K. P. Differential Equations. Pragati Prakashan.

Cita Chicago (17th ed.)

Sharma, J. N., i K. P. Singh. Differential Equations. Meerut: Pragati Prakashan.

Cita MLA (9th ed.)

Sharma, J. N., i K. P. Singh. Differential Equations. Pragati Prakashan.