Gaya APA
Widyastuti, Palupi. (2011).
Pedoman Mutu Air Minum Edisi 3 .
Jakarta:
EGC.
Gaya Chicago
Widyastuti, Palupi.
Pedoman Mutu Air Minum Edisi 3.
Jakarta:
EGC,
2011.
Text.
Gaya MLA
Widyastuti, Palupi.
Pedoman Mutu Air Minum Edisi 3.
Jakarta:
EGC,
2011.
Text.
Gaya Turabian
Widyastuti, Palupi.
Pedoman Mutu Air Minum Edisi 3.
Jakarta:
EGC,
2011.
Print.