| APA | PGS. (2012, February 14). In Acronym Geek. Retrieved 10:17, February 14, 2012, from http://www.acronymgeek.com/PGS |
| MLA | "PGS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PGS>. |
| MHRA | 'PGS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PGS> [accessed 14 February 2012] |
| Chicago | "PGS", http://www.acronymgeek.com/PGS (accessed February 14, 2012). |
| CBE/CSE | PGS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PGS. |
| Bluebook | PGS, http://www.acronymgeek.com/PGS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGS, http://www.acronymgeek.com/PGS (optional description here) (as of Feb. 14, 2012, 10:17). |
| AMA | PGS. Acronym Geek. February 14, 2012, 10:17. Available at: http://www.acronymgeek.com/PGS. Accessed February 14, 2012, 10:17. |