| APA | GPFS. (2012, February 10). In Acronym Geek. Retrieved 17:44, February 10, 2012, from http://www.acronymgeek.com/GPFS |
| MLA | "GPFS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/GPFS>. |
| MHRA | 'GPFS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/GPFS> [accessed 10 February 2012] |
| Chicago | "GPFS", http://www.acronymgeek.com/GPFS (accessed February 10, 2012). |
| CBE/CSE | GPFS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/GPFS. |
| Bluebook | GPFS, http://www.acronymgeek.com/GPFS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPFS, http://www.acronymgeek.com/GPFS (optional description here) (as of Feb. 10, 2012, 17:44). |
| AMA | GPFS. Acronym Geek. February 10, 2012, 17:44. Available at: http://www.acronymgeek.com/GPFS. Accessed February 10, 2012, 17:44. |