http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of ASM's 2nd International Conference on Ion Nitriding/Carburizing, Cincinnati, Ohio, USA, 18-20 September 1989
International Conference on Ion Nitriding/Carburizing 1989 : Cincinnati, Ohio)
edited by T. Spalvins and W.L. Kovacs ; sponsored by ASM International ; co-sponsored by NASA Lewis Research Center.