APA Style
2014/2015, Y, 2, C.
(2014).
Natural Resources-eBook
.
Jakarta Selatan:
Sekolah Cikal Cilandak.
MLA Style
2014/2015, Year, 2, C.
"Natural Resources-eBook".
Jakarta Selatan:
Sekolah Cikal Cilandak,
2014.
Printed Book.