APA (7th ed.) Citation

Pontri︠a︡gin, L. S. (1967). A course in ordinary differential equations. Hindustan Pub. Corp. (India).

Chicago Style (17th ed.) Citation

Pontri︠a︡gin, Lev Semenovich. A Course in Ordinary Differential Equations. Delhi: Hindustan Pub. Corp. (India), 1967.

MLA (9th ed.) Citation

Pontri︠a︡gin, Lev Semenovich. A Course in Ordinary Differential Equations. Hindustan Pub. Corp. (India), 1967.