APA (7th ed.) Citation

Zoe Sugg. (2016). Girl Online: Going solo (1st.). Penguin books.

Chicago Style (17th ed.) Citation

Zoe Sugg. Girl Online: Going Solo. 1st. UK: Penguin books, 2016.

MLA (9th ed.) Citation

Zoe Sugg. Girl Online: Going Solo. 1st. Penguin books, 2016.

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