00295nam a2200097Ia 4500008004100000022001400041245003400055260003600089500003500125500003700160220214s9999    xx            000 0 und d  a0009-2347 0aChemical and Engineering News  bAmerican Chemical SocietyaOhio  aEnding Volume & Year: 64, 1986  aStarting Volume & Year: 53, 1975