Citação norma 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.

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.