Cita APA (7th ed.)

Pollock, P. H. I., & Edwards, B. C. (2023). An R companion to political analysis (Third edition.). Sage CQ Press.

Cita Chicago (17th ed.)

Pollock, Philip H. III, i Barry C. Edwards. An R Companion to Political Analysis. Third edition. Thousand Oaks, California: Sage CQ Press, 2023.

Cita MLA (9th ed.)

Pollock, Philip H. III, i Barry C. Edwards. An R Companion to Political Analysis. Third edition. Sage CQ Press, 2023.