http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Problems of world security, environment, and development
PROBLEMS world-security environment -- Problems of world security, environment, and -- development. Sinaia, Romania, Aug. 26.-31., 1971. -- - (London): Pugwash Conference on Science -- and World Affairs 1971. IX, 428 S. 4° -- (Proceedings of the ... Pugwash Conference -- on Science and World Affairs. 21.) -- 1981: 3129. -- Lei.
Proceedings of the ... Pugwash Conference on Science and World Affairs 21