| APA | UPAK. (2012, February 16). In Acronym Geek. Retrieved 21:42, February 16, 2012, from http://www.acronymgeek.com/UPAK |
| MLA | "UPAK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/UPAK>. |
| MHRA | 'UPAK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/UPAK> [accessed 16 February 2012] |
| Chicago | "UPAK", http://www.acronymgeek.com/UPAK (accessed February 16, 2012). |
| CBE/CSE | UPAK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/UPAK. |
| Bluebook | UPAK, http://www.acronymgeek.com/UPAK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UPAK, http://www.acronymgeek.com/UPAK (optional description here) (as of Feb. 16, 2012, 21:42). |
| AMA | UPAK. Acronym Geek. February 16, 2012, 21:42. Available at: http://www.acronymgeek.com/UPAK. Accessed February 16, 2012, 21:42. |