Howell, M. T. (2014). Effective implementation of an ISO 50001 energy management system (EnMS). ASQ Quality Press.
Tohutoru Kātū Chicago (17th ed.)Howell, Marvin T. Effective Implementation of an ISO 50001 Energy Management System (EnMS). Milwaukee, Wisconsin: ASQ Quality Press, 2014.
Tohutoro MLA (9th ed.)Howell, Marvin T. Effective Implementation of an ISO 50001 Energy Management System (EnMS). ASQ Quality Press, 2014.
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