Cita APA (7a ed.)

Ellerbeck, E. (2018). Comparing two ways to help people with COPD stop smoking. Patient-Centered Outcomes Research Institute (PCORI).

Cita Chicago Style (17a ed.)

Ellerbeck, Edward. Comparing Two Ways to Help People with COPD Stop Smoking. Washington, D. C.: Patient-Centered Outcomes Research Institute (PCORI), 2018.

Cita MLA (9a ed.)

Ellerbeck, Edward. Comparing Two Ways to Help People with COPD Stop Smoking. Patient-Centered Outcomes Research Institute (PCORI), 2018.