Style de citation APA (7e éd.)

Richards, W. (1994). Energy levels in atoms and molecules. Oxford Univ. Pr..

Style de citation Chicago (17e éd.)

Richards, W.G. Energy Levels in Atoms and Molecules. Oxford: Oxford Univ. Pr., 1994.

Style de citation MLA (9e éd.)

Richards, W.G. Energy Levels in Atoms and Molecules. Oxford Univ. Pr., 1994.