http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings : 26-28 June 1990, London, England
Society of Photo-optical Instrumentation Engineers
Alan H. Lettington, chair/editor ; organised by Sira Communications ; cosponsored by Europtica [and others].
Includes bibliographical references and index.
Proceedings of SPIE--the International Society for Optical Engineering ; v. 1320