APA (7th ed.) Citation

Ruark, A. E., & Urey, H. C. (1930). Atoms, molecules and quanta (1. ed., 3. impr.).

Chicago Style (17th ed.) Citation

Ruark, Arthur E., and Harold C. Urey. Atoms, Molecules and Quanta. 1. ed., 3. impr. New York ; London, 1930.

MLA (9th ed.) Citation

Ruark, Arthur E., and Harold C. Urey. Atoms, Molecules and Quanta. 1. ed., 3. impr. 1930.