| APA | PSD. (2012, February 14). In Acronym Geek. Retrieved 19:37, February 14, 2012, from http://www.acronymgeek.com/PSD |
| MLA | "PSD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PSD>. |
| MHRA | 'PSD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PSD> [accessed 14 February 2012] |
| Chicago | "PSD", http://www.acronymgeek.com/PSD (accessed February 14, 2012). |
| CBE/CSE | PSD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PSD. |
| Bluebook | PSD, http://www.acronymgeek.com/PSD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PSD, http://www.acronymgeek.com/PSD (optional description here) (as of Feb. 14, 2012, 19:37). |
| AMA | PSD. Acronym Geek. February 14, 2012, 19:37. Available at: http://www.acronymgeek.com/PSD. Accessed February 14, 2012, 19:37. |