APA (7th ed.) Citation

Sommerfeld, A. (1964). Partial differential equations in physics (First paperback edition.). Academic Press.

Chicago Style (17th ed.) Citation

Sommerfeld, Arnold. Partial Differential Equations in Physics. First paperback edition. New York ; London: Academic Press, 1964.

MLA (9th ed.) Citation

Sommerfeld, Arnold. Partial Differential Equations in Physics. First paperback edition. Academic Press, 1964.