Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

McKeown, Bruce, i Dan Thomas. Q Methodology. Newbury Park, Calif: Sage, 1988.

Cita MLA (9th ed.)

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