| APA | TPKN. (2012, February 17). In Acronym Geek. Retrieved 07:49, February 17, 2012, from http://www.acronymgeek.com/TPKN |
| MLA | "TPKN." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/TPKN>. |
| MHRA | 'TPKN', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/TPKN> [accessed 17 February 2012] |
| Chicago | "TPKN", http://www.acronymgeek.com/TPKN (accessed February 17, 2012). |
| CBE/CSE | TPKN [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/TPKN. |
| Bluebook | TPKN, http://www.acronymgeek.com/TPKN (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TPKN, http://www.acronymgeek.com/TPKN (optional description here) (as of Feb. 17, 2012, 07:49). |
| AMA | TPKN. Acronym Geek. February 17, 2012, 07:49. Available at: http://www.acronymgeek.com/TPKN. Accessed February 17, 2012, 07:49. |