Cita APA (7th ed.)

King, G., Keohane, R. O., & Verba, S. Designing Social Inquiry: Scientific inference in qualitative research. Princeton University Press.

Cita Chicago (17th ed.)

King, Gary, Robert O. Keohane, i Sidney Verba. Designing Social Inquiry: Scientific Inference in Qualitative Research. New Jersey: Princeton University Press.

Cita MLA (9th ed.)

King, Gary, et al. Designing Social Inquiry: Scientific Inference in Qualitative Research. Princeton University Press.