| APA | EXTG. (2012, February 14). In Acronym Geek. Retrieved 21:08, February 14, 2012, from http://www.acronymgeek.com/EXTG |
| MLA | "EXTG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EXTG>. |
| MHRA | 'EXTG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EXTG> [accessed 14 February 2012] |
| Chicago | "EXTG", http://www.acronymgeek.com/EXTG (accessed February 14, 2012). |
| CBE/CSE | EXTG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EXTG. |
| Bluebook | EXTG, http://www.acronymgeek.com/EXTG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EXTG, http://www.acronymgeek.com/EXTG (optional description here) (as of Feb. 14, 2012, 21:08). |
| AMA | EXTG. Acronym Geek. February 14, 2012, 21:08. Available at: http://www.acronymgeek.com/EXTG. Accessed February 14, 2012, 21:08. |