Cita APA (7a ed.)

McKeown, B., & Thomas, D. (1988). Q methodology. Sage.

Cita Chicago Style (17a ed.)

McKeown, Bruce, y Dan Thomas. Q Methodology. Newbury Park [etc.]: Sage, 1988.

Cita MLA (9a ed.)

McKeown, Bruce, y Dan Thomas. Q Methodology. Sage, 1988.