APA (7th ed.) Citation

Kilpatrick, J. E., & Pitzer, K. S. (1949). Energy levels and thermodynamic functions for molecules with internal rotation. Journal of Chemical Physics, 17, 1064. https://doi.org/10.1063/1.1747114

Chicago Style (17th ed.) Citation

Kilpatrick, J. E., and K. S. Pitzer. "Energy Levels and Thermodynamic Functions for Molecules with Internal Rotation." Journal of Chemical Physics 17 (1949): 1064. https://doi.org/10.1063/1.1747114.

MLA (9th ed.) Citation

Kilpatrick, J. E., and K. S. Pitzer. "Energy Levels and Thermodynamic Functions for Molecules with Internal Rotation." Journal of Chemical Physics, vol. 17, 1949, p. 1064, https://doi.org/10.1063/1.1747114.