1. The History of Valency (Leicester University Press, Leicester, 1971).
2. LVII. On the mathematical theory of isomers
3. The Chemical Bond (Houghton Mifflin, Boston, 1966).
4. Electrons and Valence (Texas A & M University Press, College Station, 1982).
5. The Fontana History of Chemistry (Fontana, London, 1992).