| APA | GBAS. (2012, February 15). In Acronym Geek. Retrieved 04:00, February 15, 2012, from http://www.acronymgeek.com/GBAS |
| MLA | "GBAS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GBAS>. |
| MHRA | 'GBAS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GBAS> [accessed 15 February 2012] |
| Chicago | "GBAS", http://www.acronymgeek.com/GBAS (accessed February 15, 2012). |
| CBE/CSE | GBAS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GBAS. |
| Bluebook | GBAS, http://www.acronymgeek.com/GBAS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GBAS, http://www.acronymgeek.com/GBAS (optional description here) (as of Feb. 15, 2012, 04:00). |
| AMA | GBAS. Acronym Geek. February 15, 2012, 04:00. Available at: http://www.acronymgeek.com/GBAS. Accessed February 15, 2012, 04:00. |