APA (7th ed.) Citation

Constantinescu, F., & Magyari, E. (1971). Problems in quantum mechanics. Pergamon Press.

Chicago Style (17th ed.) Citation

Constantinescu, F., and E. Magyari. Problems in Quantum Mechanics. Oxford: Pergamon Press, 1971.

MLA (9th ed.) Citation

Constantinescu, F., and E. Magyari. Problems in Quantum Mechanics. Pergamon Press, 1971.