APA (7th ed.) Citation

Callaghan, H. (2021). Night Falls, Still Missing. Penguin Books.

Chicago Style (17th ed.) Citation

Callaghan, Helen. Night Falls, Still Missing. UK: Penguin Books, 2021.

MLA (9th ed.) Citation

Callaghan, Helen. Night Falls, Still Missing. Penguin Books, 2021.

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