Ullmann's Encyclopedia of Industrial Chemistry by James E. Bailey, William E. Russey, Wiley-VCH Staff, Stephen Hawkins and Barbara Elvers (2003, Hardcover, Revised)
^Ullmann's Encyclopedia of Industrial Chemistry by James E. Bailey, William E. Russey, Wiley-VCH Staff, Stephen Hawkins and Barbara Elvers (2003, Hardcover, Revised)ISBN 9783527303854 (revised Jul 2018)