| APA | PKII. (2012, February 14). In Acronym Geek. Retrieved 19:45, February 14, 2012, from http://www.acronymgeek.com/PKII |
| MLA | "PKII." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PKII>. |
| MHRA | 'PKII', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PKII> [accessed 14 February 2012] |
| Chicago | "PKII", http://www.acronymgeek.com/PKII (accessed February 14, 2012). |
| CBE/CSE | PKII [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PKII. |
| Bluebook | PKII, http://www.acronymgeek.com/PKII (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PKII, http://www.acronymgeek.com/PKII (optional description here) (as of Feb. 14, 2012, 19:45). |
| AMA | PKII. Acronym Geek. February 14, 2012, 19:45. Available at: http://www.acronymgeek.com/PKII. Accessed February 14, 2012, 19:45. |