APA (7th ed.) Citation

Gunnell, D., Platt, S., & Hawton, K. (2009). The economic crisis and suicide.

Chicago Style (17th ed.) Citation

Gunnell, D., S. Platt, and K. Hawton. The Economic Crisis and Suicide. 2009.

MLA (9th ed.) Citation

Gunnell, D., et al. The Economic Crisis and Suicide. 2009.