CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-47
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 3.15
Franzosini P., Sanesi M. Thermodynamic and transport properties of organic salts. - IUPAC Chemical Data Series, No. 28. - Pergamon Press, 1980. - pp. 74
Perry D.L. Handbook of Inorganic Compounds. - 2nd ed. - CRC Press, 2011. - pp. 30