Cita APA (7a ed.)

Sommerfeld, A. (1950). Lectures on Theoretical Physics. Academic Press.

Cita Chicago Style (17a ed.)

Sommerfeld, Arnold. Lectures on Theoretical Physics. New York: Academic Press, 1950.

Cita MLA (9a ed.)

Sommerfeld, Arnold. Lectures on Theoretical Physics. Academic Press, 1950.