English Beginner API RP 75 3rd Ed. May 2004 - Recommended Practice for Development of a Safety and Environmental Management Program for Offshore Operations and Facilities API مشاهدهٔ کتاب
English Beginner API RP 76 2nd Ed. Nov. 2007 - Contractor Safety Management for Oil and Gas Drilling and Production Operations API مشاهدهٔ کتاب
