Murrell, J. N., Kettle, S. F. A., & Tedder, J. M. (1965). Valence theory. Wiley.
Cita Chicago (17th ed.)Murrell, J. N., Sidney Francis Alan Kettle, i J. M. Tedder. Valence Theory. London, New York: Wiley, 1965.
Cita MLA (8th ed.)Murrell, J. N., et al. Valence Theory. Wiley, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.