| APA | GEPO. (2012, February 16). In Acronym Geek. Retrieved 03:52, February 16, 2012, from http://www.acronymgeek.com/GEPO |
| MLA | "GEPO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GEPO>. |
| MHRA | 'GEPO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GEPO> [accessed 16 February 2012] |
| Chicago | "GEPO", http://www.acronymgeek.com/GEPO (accessed February 16, 2012). |
| CBE/CSE | GEPO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GEPO. |
| Bluebook | GEPO, http://www.acronymgeek.com/GEPO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GEPO, http://www.acronymgeek.com/GEPO (optional description here) (as of Feb. 16, 2012, 03:52). |
| AMA | GEPO. Acronym Geek. February 16, 2012, 03:52. Available at: http://www.acronymgeek.com/GEPO. Accessed February 16, 2012, 03:52. |