APA (7th ed.) Citation

Heatley, M. (2013). Katy Perry: The ultimate pop princess. Instinctive Product Development.

Chicago Style (17th ed.) Citation

Heatley, Michael. Katy Perry: The Ultimate Pop Princess. UK: Instinctive Product Development, 2013.

MLA (9th ed.) Citation

Heatley, Michael. Katy Perry: The Ultimate Pop Princess. Instinctive Product Development, 2013.

Warning: These citations may not always be 100% accurate.