| APA | PSGI. (2012, February 14). In Acronym Geek. Retrieved 18:12, February 14, 2012, from http://www.acronymgeek.com/PSGI |
| MLA | "PSGI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PSGI>. |
| MHRA | 'PSGI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PSGI> [accessed 14 February 2012] |
| Chicago | "PSGI", http://www.acronymgeek.com/PSGI (accessed February 14, 2012). |
| CBE/CSE | PSGI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PSGI. |
| Bluebook | PSGI, http://www.acronymgeek.com/PSGI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PSGI, http://www.acronymgeek.com/PSGI (optional description here) (as of Feb. 14, 2012, 18:12). |
| AMA | PSGI. Acronym Geek. February 14, 2012, 18:12. Available at: http://www.acronymgeek.com/PSGI. Accessed February 14, 2012, 18:12. |