| APA | PTOM. (2012, February 14). In Acronym Geek. Retrieved 21:23, February 14, 2012, from http://www.acronymgeek.com/PTOM |
| MLA | "PTOM." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PTOM>. |
| MHRA | 'PTOM', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PTOM> [accessed 14 February 2012] |
| Chicago | "PTOM", http://www.acronymgeek.com/PTOM (accessed February 14, 2012). |
| CBE/CSE | PTOM [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PTOM. |
| Bluebook | PTOM, http://www.acronymgeek.com/PTOM (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTOM, http://www.acronymgeek.com/PTOM (optional description here) (as of Feb. 14, 2012, 21:23). |
| AMA | PTOM. Acronym Geek. February 14, 2012, 21:23. Available at: http://www.acronymgeek.com/PTOM. Accessed February 14, 2012, 21:23. |