Gaya APA
Cowell, C. (2020).
Si Kembar Treetop : Si Kembar Menolong Lumba-Lumba Berwarna Merah Muda .
China:
Hodder Childrens Books.
Gaya MLA
Cowell, Cressida.
"Si Kembar Treetop : Si Kembar Menolong Lumba-Lumba Berwarna Merah Muda".
China:
Hodder Childrens Books,
2020.
Text.