APA (7th ed.) Citation

Cartmell, E., & Fowles, G. W. A. (1970). Valency and molecular structure (3rd ed., 2nd impr.). Butterworths.

Chicago Style (17th ed.) Citation

Cartmell, E., and G. W. A. Fowles. Valency and Molecular Structure. 3rd ed., 2nd impr. London: Butterworths, 1970.

MLA (9th ed.) Citation

Cartmell, E., and G. W. A. Fowles. Valency and Molecular Structure. 3rd ed., 2nd impr. Butterworths, 1970.