APA (7th ed.) Citation

Blackman, M. (2017). Knife edge. Penguin Books.

Chicago Style (17th ed.) Citation

Blackman, Malorie. Knife Edge. United Kingdom: Penguin Books, 2017.

MLA (9th ed.) Citation

Blackman, Malorie. Knife Edge. Penguin Books, 2017.

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