| APA | PKIX. (2012, February 14). In Acronym Geek. Retrieved 00:07, February 14, 2012, from http://www.acronymgeek.com/PKIX |
| MLA | "PKIX." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PKIX>. |
| MHRA | 'PKIX', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PKIX> [accessed 14 February 2012] |
| Chicago | "PKIX", http://www.acronymgeek.com/PKIX (accessed February 14, 2012). |
| CBE/CSE | PKIX [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PKIX. |
| Bluebook | PKIX, http://www.acronymgeek.com/PKIX (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PKIX, http://www.acronymgeek.com/PKIX (optional description here) (as of Feb. 14, 2012, 00:07). |
| AMA | PKIX. Acronym Geek. February 14, 2012, 00:07. Available at: http://www.acronymgeek.com/PKIX. Accessed February 14, 2012, 00:07. |