| APA | GBLO. (2012, February 14). In Acronym Geek. Retrieved 16:28, February 14, 2012, from http://www.acronymgeek.com/GBLO |
| MLA | "GBLO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GBLO>. |
| MHRA | 'GBLO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GBLO> [accessed 14 February 2012] |
| Chicago | "GBLO", http://www.acronymgeek.com/GBLO (accessed February 14, 2012). |
| CBE/CSE | GBLO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GBLO. |
| Bluebook | GBLO, http://www.acronymgeek.com/GBLO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GBLO, http://www.acronymgeek.com/GBLO (optional description here) (as of Feb. 14, 2012, 16:28). |
| AMA | GBLO. Acronym Geek. February 14, 2012, 16:28. Available at: http://www.acronymgeek.com/GBLO. Accessed February 14, 2012, 16:28. |