APA (7th ed.) Citation

Megerella, P., & Lulubelle, P. (2003). Imagine you're a princess! Zero To Ten.

Chicago Style (17th ed.) Citation

Megerella, Princess, and Princess Lulubelle. Imagine You're a Princess! London: Zero To Ten, 2003.

MLA (9th ed.) Citation

Megerella, Princess, and Princess Lulubelle. Imagine You're a Princess! Zero To Ten, 2003.