| APA | KPI. (2012, February 10). In Acronym Geek. Retrieved 08:23, February 10, 2012, from http://www.acronymgeek.com/KPI |
| MLA | "KPI." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/KPI>. |
| MHRA | 'KPI', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/KPI> [accessed 10 February 2012] |
| Chicago | "KPI", http://www.acronymgeek.com/KPI (accessed February 10, 2012). |
| CBE/CSE | KPI [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/KPI. |
| Bluebook | KPI, http://www.acronymgeek.com/KPI (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KPI, http://www.acronymgeek.com/KPI (optional description here) (as of Feb. 10, 2012, 08:23). |
| AMA | KPI. Acronym Geek. February 10, 2012, 08:23. Available at: http://www.acronymgeek.com/KPI. Accessed February 10, 2012, 08:23. |