IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. பன்னாட்டுத் தரப்புத்தக எண்0-9678550-9-8 doi:10.1351/goldbook.M03968 http://goldbook.iupac.org/M03968.html
