Gaya APA
Welch, Thomas E.. (2011).
IMPLEMENTING ISO 50001 .
Florida:
TRIMARK PRESS.
Gaya Chicago
Welch, Thomas E..
IMPLEMENTING ISO 50001.
Florida:
TRIMARK PRESS,
2011.
Text.
Gaya MLA
Welch, Thomas E..
IMPLEMENTING ISO 50001.
Florida:
TRIMARK PRESS,
2011.
Text.
Gaya Turabian
Welch, Thomas E..
IMPLEMENTING ISO 50001.
Florida:
TRIMARK PRESS,
2011.
Print.