| APA | GAP. (2012, February 9). In Acronym Geek. Retrieved 20:50, February 9, 2012, from http://www.acronymgeek.com/GAP |
| MLA | "GAP." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/GAP>. |
| MHRA | 'GAP', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/GAP> [accessed 9 February 2012] |
| Chicago | "GAP", http://www.acronymgeek.com/GAP (accessed February 9, 2012). |
| CBE/CSE | GAP [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/GAP. |
| Bluebook | GAP, http://www.acronymgeek.com/GAP (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GAP, http://www.acronymgeek.com/GAP (optional description here) (as of Feb. 9, 2012, 20:50). |
| AMA | GAP. Acronym Geek. February 9, 2012, 20:50. Available at: http://www.acronymgeek.com/GAP. Accessed February 9, 2012, 20:50. |