Sharma, B. D. (1999). Differential Equations (15th ed.). Kedar Nath Ram Nath.
Citazione stile Chigago Style (17a edizione)Sharma, Bhu Dev. Differential Equations. 15th ed. Meerut: Kedar Nath Ram Nath, 1999.
Citatione MLA (9a ed.)Sharma, Bhu Dev. Differential Equations. 15th ed. Kedar Nath Ram Nath, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.