APA (7th ed.) Citation

Cartmell, E., & Fowles, G. W. A. (1977). Valency and molecular structure (4th ed.). Butterworths.

Chicago Style (17th ed.) Citation

Cartmell, E., and G. W. A. Fowles. Valency and Molecular Structure. 4th ed. London: Butterworths, 1977.

MLA (9th ed.) Citation

Cartmell, E., and G. W. A. Fowles. Valency and Molecular Structure. 4th ed. Butterworths, 1977.