Gaya APA
Highfield, R.
(2006).
Sains Harry Potter
(
Cet. 1)
.
Jakarta:
Kepustakaan Populer Gramedia.
Gaya MLA
Highfield, Roger.
"Sains Harry Potter".
Cet. 1
Jakarta:
Kepustakaan Populer Gramedia,
2006.
Text.