| APA | GPWS. (2012, February 10). In Acronym Geek. Retrieved 12:40, February 10, 2012, from http://www.acronymgeek.com/GPWS |
| MLA | "GPWS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/GPWS>. |
| MHRA | 'GPWS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/GPWS> [accessed 10 February 2012] |
| Chicago | "GPWS", http://www.acronymgeek.com/GPWS (accessed February 10, 2012). |
| CBE/CSE | GPWS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/GPWS. |
| Bluebook | GPWS, http://www.acronymgeek.com/GPWS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPWS, http://www.acronymgeek.com/GPWS (optional description here) (as of Feb. 10, 2012, 12:40). |
| AMA | GPWS. Acronym Geek. February 10, 2012, 12:40. Available at: http://www.acronymgeek.com/GPWS. Accessed February 10, 2012, 12:40. |