Atkins, P.W. and De Paula, J. (2014) Atkins’ Physical chemistry. 10th ed. Oxford: Oxford University Press.
Ellis, A.M., Fehér, M. and Wright, T.G. (2005) Electronic and photoelectron spectroscopy: fundamentals and case studies. Cambridge: Cambridge University Press.
Hollas, J.M. (1998) High resolution spectroscopy. 2nd ed. Chichester: John Wiley & Sons.
Hollas, J.M. and MyiLibrary (2004) Modern spectroscopy. 4th ed. Chichester: John Wiley & Sons. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=219771.
Telle, H.H. et al. (2007) Laser chemistry: spectroscopy, dynamics and applications. Chichester: John Wiley & Sons. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=292565.