APA Style

Cowell, C. (2021). Para Detektif Mungil: Mengapa Langit Bewarna Biru? . London: Hodder Children\'s Books.

MLA Style

Cowell, Cressida. "Para Detektif Mungil: Mengapa Langit Bewarna Biru?". London: Hodder Children\'s Books, 2021. Text.