Gaya APA
Organization, W., H. et al. (2011).
Pedoman mutu air minum = Guedelines for Drinking - water Quality (3).
Jakarta:
EGC.
Gaya MLA
Organization, W., H. et al..
Pedoman mutu air minum = Guedelines for Drinking - water Quality.
3
Jakarta:
EGC,
2011.
Text.