Παραπομπή APA

Gasser, R., & Richards, W. (1974). Entropy and energy levels. Oxford University.

Παραπομπή Chicago Style

Gasser, R.P.H, και W.G Richards. Entropy and Energy Levels. London: Oxford University, 1974.

Παραπομπή MLA

Gasser, R.P.H, και W.G Richards. Entropy and Energy Levels. Oxford University, 1974.