http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a guide to methods in potentiometry, extraction, and spectrophotometry
M. Meloun, J. Havel, and E. Högfeldt ; translation editors, M.R. Masson and R.A. Chalmers.
Ellis Horwood series in analytical chemistry