APA (7th ed.) Citation

Perri, C., & Sheeran, E. (2014). Head or heart. Atlantic.

Chicago Style (17th ed.) Citation

Perri, Christina, and Ed Sheeran. Head or Heart. New York: Atlantic, 2014.

MLA (8th ed.) Citation

Perri, Christina, and Ed Sheeran. Head or Heart. Atlantic, 2014.

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