http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
guide to the literature 1935-1976, organic and organometallic crystal structures
edited by Olga Kennard, Frank H. Allen and David G. Watson.
This volume acts as a guide to organic and organometallic crystal structures published between 1935 and mid-1976 and as a Cumulative index to the Molecular structures and dimensions series, volumes 1-8.