| APA | GPWK. (2012, February 16). In Acronym Geek. Retrieved 09:46, February 16, 2012, from http://www.acronymgeek.com/GPWK |
| MLA | "GPWK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GPWK>. |
| MHRA | 'GPWK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GPWK> [accessed 16 February 2012] |
| Chicago | "GPWK", http://www.acronymgeek.com/GPWK (accessed February 16, 2012). |
| CBE/CSE | GPWK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GPWK. |
| Bluebook | GPWK, http://www.acronymgeek.com/GPWK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPWK, http://www.acronymgeek.com/GPWK (optional description here) (as of Feb. 16, 2012, 09:46). |
| AMA | GPWK. Acronym Geek. February 16, 2012, 09:46. Available at: http://www.acronymgeek.com/GPWK. Accessed February 16, 2012, 09:46. |