Cita APA (7a ed.)

Sommerfeld, A., & Stern, M. O. (1961). Lectures on theoretical physics (3rd printing.). Academic Press.

Cita Chicago Style (17a ed.)

Sommerfeld, Arnold, y Martin O. Stern. Lectures on Theoretical Physics. 3rd printing. New York [etc.]: Academic Press, 1961.

Cita MLA (9a ed.)

Sommerfeld, Arnold, y Martin O. Stern. Lectures on Theoretical Physics. 3rd printing. Academic Press, 1961.