APA (7th ed.) Citation

Petrovsky, I. G. (1967). Partial differential equations. W. B. Saunders.

Chicago Style (17th ed.) Citation

Petrovsky, Ivan Georgievich. Partial Differential Equations. Filadelfia: W. B. Saunders, 1967.

MLA (9th ed.) Citation

Petrovsky, Ivan Georgievich. Partial Differential Equations. W. B. Saunders, 1967.