Cita APA (7a ed.)

Ter Haar, D. (1967). The old quantum theory. Pergamon Press.

Cita Chicago Style (17a ed.)

Ter Haar, D. The Old Quantum Theory. Oxford: Pergamon Press, 1967.

Cita MLA (8a ed.)

Ter Haar, D. The Old Quantum Theory. Pergamon Press, 1967.