APA (7e ed.) Bronvermelding

Hawton, K., Bergen, H., Simkin, S., Brock, A., Griffiths, C., Romeri, E., . . . Gunnell, D. (2009). Effect of withdrawal of co-proxamol on prescribing and deaths from drug poisoning in England and Wales: Time series analysis.

Chicago (17e ed.) Bronvermelding

Hawton, K., H. Bergen, S. Simkin, A. Brock, C. Griffiths, E. Romeri, K. Smith, N. Kapur, en D. Gunnell. Effect of Withdrawal of Co-proxamol on Prescribing and Deaths from Drug Poisoning in England and Wales: Time Series Analysis. 2009.

MLA (9e ed.) Bronvermelding

Hawton, K., et al. Effect of Withdrawal of Co-proxamol on Prescribing and Deaths from Drug Poisoning in England and Wales: Time Series Analysis. 2009.