APA استشهاد

Sewell, L., Singh, S. J., Williams, J. E. A., Collier, R., & Morgan, M. D. L. (2006). How long should outpatient pulmonary rehabilitation be? A randomised controlled trial of 4 weeks versus 7 weeks. BMJ Group.

استشهاد بنمط شيكاغو

Sewell, L., S J. Singh, J E A. Williams, R. Collier, و M D L. Morgan. How Long Should Outpatient Pulmonary Rehabilitation Be? A Randomised Controlled Trial of 4 weeks Versus 7 weeks. BMJ Group, 2006.

MLA استشهاد

Sewell, L., et al. How Long Should Outpatient Pulmonary Rehabilitation Be? A Randomised Controlled Trial of 4 weeks Versus 7 weeks. BMJ Group, 2006.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.