| APA | GPWL. (2012, February 16). In Acronym Geek. Retrieved 02:04, February 16, 2012, from http://www.acronymgeek.com/GPWL |
| MLA | "GPWL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GPWL>. |
| MHRA | 'GPWL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GPWL> [accessed 16 February 2012] |
| Chicago | "GPWL", http://www.acronymgeek.com/GPWL (accessed February 16, 2012). |
| CBE/CSE | GPWL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GPWL. |
| Bluebook | GPWL, http://www.acronymgeek.com/GPWL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPWL, http://www.acronymgeek.com/GPWL (optional description here) (as of Feb. 16, 2012, 02:04). |
| AMA | GPWL. Acronym Geek. February 16, 2012, 02:04. Available at: http://www.acronymgeek.com/GPWL. Accessed February 16, 2012, 02:04. |