| APA | PSFD. (2012, February 17). In Acronym Geek. Retrieved 06:27, February 17, 2012, from http://www.acronymgeek.com/PSFD |
| MLA | "PSFD." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PSFD>. |
| MHRA | 'PSFD', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PSFD> [accessed 17 February 2012] |
| Chicago | "PSFD", http://www.acronymgeek.com/PSFD (accessed February 17, 2012). |
| CBE/CSE | PSFD [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PSFD. |
| Bluebook | PSFD, http://www.acronymgeek.com/PSFD (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PSFD, http://www.acronymgeek.com/PSFD (optional description here) (as of Feb. 17, 2012, 06:27). |
| AMA | PSFD. Acronym Geek. February 17, 2012, 06:27. Available at: http://www.acronymgeek.com/PSFD. Accessed February 17, 2012, 06:27. |