| APA | PORTSTEP. (2012, February 12). In Acronym Geek. Retrieved 11:27, February 12, 2012, from http://www.acronymgeek.com/PORTSTEP |
| MLA | "PORTSTEP." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/PORTSTEP>. |
| MHRA | 'PORTSTEP', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/PORTSTEP> [accessed 12 February 2012] |
| Chicago | "PORTSTEP", http://www.acronymgeek.com/PORTSTEP (accessed February 12, 2012). |
| CBE/CSE | PORTSTEP [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/PORTSTEP. |
| Bluebook | PORTSTEP, http://www.acronymgeek.com/PORTSTEP (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PORTSTEP, http://www.acronymgeek.com/PORTSTEP (optional description here) (as of Feb. 12, 2012, 11:27). |
| AMA | PORTSTEP. Acronym Geek. February 12, 2012, 11:27. Available at: http://www.acronymgeek.com/PORTSTEP. Accessed February 12, 2012, 11:27. |