Cita APA

Green, R., Singh, S., Williams, J., & Morgan, M. (2001). A randomised controlled trial of four weeks versus seven weeks of pulmonary rehabilitation in chronic obstructive pulmonary disease. BMJ Group.

Chicago Style Citation

Green, R., S. Singh, J. Williams, i M. Morgan. A Randomised Controlled Trial of Four Weeks Versus Seven Weeks Of pulmonary Rehabilitation in Chronic Obstructive Pulmonary Disease. BMJ Group, 2001.

Cita MLA

Green, R., S. Singh, J. Williams, i M. Morgan. A Randomised Controlled Trial of Four Weeks Versus Seven Weeks Of pulmonary Rehabilitation in Chronic Obstructive Pulmonary Disease. BMJ Group, 2001.