00372nam a2200109Ia 450000500170000000800410001708200150005810000300007324500940010326000350019765000300023220240911061612.0190117s9999    xx            000 0 und d  a692.3bEME  aEmerick, Robert Henderson 0aHandbook of mechnical specifications for buildings and plants /cRobert Henderson Emerick  aNew York :bMcGraw-Hill,c1966  aMechinical specifications