Cartmell, E. (1966). Valency and molecular structure. Butterworths.
Cita Chicago (17th ed.)Cartmell, E. Valency and Molecular Structure. London: Butterworths, 1966.
Cita MLA (9th ed.)Cartmell, E. Valency and Molecular Structure. Butterworths, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.