Gaya APA

Griffiths, A., Denton, T. (2015). The 13-Storey Treehouse (1) . London, UK: Macmillan Children\'s Books.

Gaya MLA

Griffiths, Andy., Denton, Terry. "The 13-Storey Treehouse (1)". London, UK: Macmillan Children\'s Books, 2015. Text.