Gaya APA
SKERRY, B.
(2018).
National Geopgraphic Kids: Hiupedia
.
Indonesia:
Kepustakaan Populer Gramedia.
Gaya MLA
SKERRY, BRIAN.
"National Geopgraphic Kids: Hiupedia".
Indonesia:
Kepustakaan Populer Gramedia,
2018.
Text.