Cita APA (7a ed.)

Barbour, R. S. (2007). Doing focus groups (1st published.). SAGE.

Cita Chicago Style (17a ed.)

Barbour, Rosaline S. Doing Focus Groups. 1st published. Los Angeles [etc.]: SAGE, 2007.

Cita MLA (9a ed.)

Barbour, Rosaline S. Doing Focus Groups. 1st published. SAGE, 2007.