Gaya APA
Howell, M, T. (2014).
Effective implementation of an ISO 50001 energy management system (EnMS) .
wiu:
ASQC Quality Press.
Gaya MLA
Howell, Marvin, T..
"Effective implementation of an ISO 50001 energy management system (EnMS)".
wiu:
ASQC Quality Press,
2014.
E Book.