Sharma, B. (1999). Differential equations for honours and post-graduate: Classes. Kedarnath Ramnath.
Citazione stile Chigago Style (17a edizione)Sharma, Bhudev. Differential Equations for Honours and Post-graduate: Classes. Meerut: Kedarnath Ramnath, 1999.
Citatione MLA (9a ed.)Sharma, Bhudev. Differential Equations for Honours and Post-graduate: Classes. Kedarnath Ramnath, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.