APA aipamena

Richard, W. G., & Sott, P. R. (1994). Energy levels in atoms and molecules.

Chicago Style aipamena

Richard, W G., and P R. Sott. Energy Levels in Atoms and Molecules. Oxford, Oxford University Press, 1994.

MLA aipamena

Richard, W G., and P R. Sott. Energy Levels in Atoms and Molecules. 1994.