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Society of Photo-optical Instrumentation Engineers 624 ebrary, Inc 442 SpringerLink (Online service) 322 ProQuest (Firm) 288 Society of Photo-Optical Instrumentation Engineers 208 International Correspondence Schools 176 Society of Manufacturing Engineers 170 IEEE Xplore (Online service) 147 Technical Association of the Pulp and Paper Industry 141 Forest Products Laboratory (U.S.) 133 Institute of Electrical and Electronics Engineers 121 American Society of Mechanical Engineers Winter Annual Meeting 111 Textile Institute (Manchester, England) 99 American Society of Mechanical Engineers Pressure Vessels and Piping Division 94 British Intelligence Objectives Sub-Committee 92 SPIE (Society) 92 Autofact 85 Davim, J. Paulo 84 Edgar Fahs Smith Memorial Collection (University of Pennsylvania) 80 National Institute of Standards and Technology (U.S.) 77 American Society for Testing and Materials 67 De Gruyter 67 Gotham Book Mart Collection (University of Pennsylvania) 67 American Foundrymen's Society 66 Adam Matthew Digital (Firm) 64 John W. Hartman Center for Sales, Advertising & Marketing History 63 American Society of Mechanical Engineers Production Engineering Division 61 International Federation of Automatic Control 60 American Management Association 59 American Welding Society 59 see all ...

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