APA (7th ed.) Citation

Dirac, P. A. M. (1972). Aspects of quantum theory. University Press.

Chicago Style (17th ed.) Citation

Dirac, P. A. M. Aspects of Quantum Theory. Cambridge [Eng.]: University Press, 1972.

MLA (9th ed.) Citation

Dirac, P. A. M. Aspects of Quantum Theory. University Press, 1972.