Gaya APA
,Anny, H., Hikmat, A.
(1984).
Pencemaran Air
(
1)
.
Bandung:
KaryaPutri Wardhani.
Gaya MLA
,Anny, Hikmnat., Hikmat, Anny.
"Pencemaran Air".
1
Bandung:
KaryaPutri Wardhani,
1984.
Text.