Cita APA

Hardern, R. D., & Gray, A. J. (1997). Carbon monoxide poisoning. BMJ Group.

Chicago Style Citation

Hardern, R. D., i A. J. Gray. Carbon Monoxide Poisoning. BMJ Group, 1997.

Cita MLA

Hardern, R. D., i A. J. Gray. Carbon Monoxide Poisoning. BMJ Group, 1997.