The Commission on the Nomenclature of Organic Chemistry (1971 (3rd edition combined)) [1958 (A: Hydrocarbons, and B: Fundamental Heterocyclic Systems), 1965 (C: Characteristic Groups)]. Nomenclature of Organic Chemistry (3 ed.). London: Butterworths. ISBN0-408-70144-7. {{cite book}}: Check date values in: |year= (help)CS1 maint: year (link)
