Gaya APA
Rowling, J. (2018).
Harry Potter and the Prisoner of Azkaban " SLYTHERIN" .
London:
Bloomsbury Children's Books.
Gaya MLA
Rowling, J.K.
"Harry Potter and the Prisoner of Azkaban " SLYTHERIN"".
London:
Bloomsbury Children's Books,
2018.
Text.