| APA | PYMS. (2012, February 12). In Acronym Geek. Retrieved 07:22, February 12, 2012, from http://www.acronymgeek.com/PYMS |
| MLA | "PYMS." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/PYMS>. |
| MHRA | 'PYMS', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/PYMS> [accessed 12 February 2012] |
| Chicago | "PYMS", http://www.acronymgeek.com/PYMS (accessed February 12, 2012). |
| CBE/CSE | PYMS [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/PYMS. |
| Bluebook | PYMS, http://www.acronymgeek.com/PYMS (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PYMS, http://www.acronymgeek.com/PYMS (optional description here) (as of Feb. 12, 2012, 07:22). |
| AMA | PYMS. Acronym Geek. February 12, 2012, 07:22. Available at: http://www.acronymgeek.com/PYMS. Accessed February 12, 2012, 07:22. |