| APA | WTPI. (2012, February 15). In Acronym Geek. Retrieved 04:22, February 15, 2012, from http://www.acronymgeek.com/WTPI |
| MLA | "WTPI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/WTPI>. |
| MHRA | 'WTPI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/WTPI> [accessed 15 February 2012] |
| Chicago | "WTPI", http://www.acronymgeek.com/WTPI (accessed February 15, 2012). |
| CBE/CSE | WTPI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/WTPI. |
| Bluebook | WTPI, http://www.acronymgeek.com/WTPI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, WTPI, http://www.acronymgeek.com/WTPI (optional description here) (as of Feb. 15, 2012, 04:22). |
| AMA | WTPI. Acronym Geek. February 15, 2012, 04:22. Available at: http://www.acronymgeek.com/WTPI. Accessed February 15, 2012, 04:22. |