| APA | OBGC. (2012, February 15). In Acronym Geek. Retrieved 16:14, February 15, 2012, from http://www.acronymgeek.com/OBGC |
| MLA | "OBGC." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OBGC>. |
| MHRA | 'OBGC', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OBGC> [accessed 15 February 2012] |
| Chicago | "OBGC", http://www.acronymgeek.com/OBGC (accessed February 15, 2012). |
| CBE/CSE | OBGC [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OBGC. |
| Bluebook | OBGC, http://www.acronymgeek.com/OBGC (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBGC, http://www.acronymgeek.com/OBGC (optional description here) (as of Feb. 15, 2012, 16:14). |
| AMA | OBGC. Acronym Geek. February 15, 2012, 16:14. Available at: http://www.acronymgeek.com/OBGC. Accessed February 15, 2012, 16:14. |