The HTML reproduction of the IUPAC Nomenclature of Organic Chemistry is published by Advanced Chemistry Development, Inc. with permission of the IUPAC. The following IUPAC publications were taken as a source: 

Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, Oxford, 1979. Copyright 1979 IUPAC.

A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC.