Pollock, P. H., & Edwards, B. C. (2018). An R companion to political analysis (Second edition.). Sage.
Chicago Edition CitationPollock, Philip H., and Barry C. Edwards. An R Companion to Political Analysis. Second edition. London: Sage, 2018.
MLA Edition CitationPollock, Philip H., and Barry C. Edwards. An R Companion to Political Analysis. Second edition. Sage, 2018.
Warning: These citations may not always be 100% accurate.