APA استشهاد

Richards, W., & Horsley, J. (1970). Ab initio molecular orbital calculations for chemistry. Clarendon.

استشهاد بنمط شيكاغو

Richards, W.G, و J.A Horsley. Ab Initio Molecular Orbital Calculations for Chemistry. Oxford: Clarendon, 1970.

MLA استشهاد

Richards, W.G, و J.A Horsley. Ab Initio Molecular Orbital Calculations for Chemistry. Clarendon, 1970.