APA (7th ed.) Citation

Richards, W. G., & Scott, P. R. (1994). Energy levels in atoms and molecules / W.G. Richards, P.R. Scott. Oxford University Press.

Chicago Style (17th ed.) Citation

Richards, W. G., and P. R. Scott. Energy Levels in Atoms and Molecules / W.G. Richards, P.R. Scott. Oxford: Oxford University Press, 1994.

MLA (9th ed.) Citation

Richards, W. G., and P. R. Scott. Energy Levels in Atoms and Molecules / W.G. Richards, P.R. Scott. Oxford University Press, 1994.

Warning: These citations may not always be 100% accurate.