Gaya APA
Lee, C., Lin, S, D. (2007).
Handbook of environmental enginering calculation (1).
United States of America:
The Boston Consulting Group.
Gaya MLA
Lee, C.C.., Lin, Shun, Dar.
"Handbook of environmental enginering calculation".
1
United States of America:
The Boston Consulting Group,
2007.
Text.