| Style | Reference Text |
|---|
| APA | PORTIS. (2009, November 9). In All Acronyms. Retrieved 04:39, November 9, 2009, from http://www.all-acronyms.com/PORTIS |
| MLA | "PORTIS." All Acronyms. 9 Nov 2009, 04:39. All Acronyms. 9 Nov 2009 <http://www.all-acronyms.com/PORTIS>. |
| MHRA | 'PORTIS', All Acronyms, 9 November 2009, 04:39, <http://www.all-acronyms.com/PORTIS> [accessed 9 November 2009] |
| Chicago | "PORTIS," http://www.all-acronyms.com/PORTIS (accessed November 9, 2009). |
| CBE/CSE | PORTIS [Internet]. All Acronyms; 2009 Nov 9, 04:39 [cited 2009 Nov 9]. Available from: http://www.all-acronyms.com/PORTIS. |
| Bluebook | PORTIS, http://www.all-acronyms.com/PORTIS (last visited November 9, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, PORTIS, http://www.all-acronyms.com/PORTIS (optional description here) (as of Nov. 9, 2009, 04:39). |
| AMA | PORTIS. All Acronyms. November 9, 2009, 04:39. Available at: http://www.all-acronyms.com/PORTIS. Accessed November 9, 2009. |
Portable Ticket Issuing System