APA (7th ed.) Citation

Cartmell, E. (1966). Valency and molecular structure. Butterworths.

Chicago Style (17th ed.) Citation

Cartmell, E. Valency and Molecular Structure. London: Butterworths, 1966.

MLA (9th ed.) Citation

Cartmell, E. Valency and Molecular Structure. Butterworths, 1966.