Cita APA

Crombie, I., Wright, A., Irvine, L., Clark, R., & Slane, P. (2001). Does passive smoking increase the frequency of health service contacts in children with asthma? BMJ Group.

Citación estilo Chicago

Crombie, I., A. Wright, L. Irvine, R. Clark, y P. Slane. Does Passive Smoking Increase the Frequency of Health Service contacts in Children With Asthma? BMJ Group, 2001.

Cita MLA

Crombie, I., et al. Does Passive Smoking Increase the Frequency of Health Service contacts in Children With Asthma? BMJ Group, 2001.