| APA | GCBM. (2012, February 15). In Acronym Geek. Retrieved 08:12, February 15, 2012, from http://www.acronymgeek.com/GCBM |
| MLA | "GCBM." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GCBM>. |
| MHRA | 'GCBM', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GCBM> [accessed 15 February 2012] |
| Chicago | "GCBM", http://www.acronymgeek.com/GCBM (accessed February 15, 2012). |
| CBE/CSE | GCBM [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GCBM. |
| Bluebook | GCBM, http://www.acronymgeek.com/GCBM (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCBM, http://www.acronymgeek.com/GCBM (optional description here) (as of Feb. 15, 2012, 08:12). |
| AMA | GCBM. Acronym Geek. February 15, 2012, 08:12. Available at: http://www.acronymgeek.com/GCBM. Accessed February 15, 2012, 08:12. |