| APA | PTAC. (2012, February 16). In Acronym Geek. Retrieved 10:39, February 16, 2012, from http://www.acronymgeek.com/PTAC |
| MLA | "PTAC." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PTAC>. |
| MHRA | 'PTAC', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PTAC> [accessed 16 February 2012] |
| Chicago | "PTAC", http://www.acronymgeek.com/PTAC (accessed February 16, 2012). |
| CBE/CSE | PTAC [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PTAC. |
| Bluebook | PTAC, http://www.acronymgeek.com/PTAC (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTAC, http://www.acronymgeek.com/PTAC (optional description here) (as of Feb. 16, 2012, 10:39). |
| AMA | PTAC. Acronym Geek. February 16, 2012, 10:39. Available at: http://www.acronymgeek.com/PTAC. Accessed February 16, 2012, 10:39. |