| APA | OBGD. (2012, February 14). In Acronym Geek. Retrieved 15:45, February 14, 2012, from http://www.acronymgeek.com/OBGD |
| MLA | "OBGD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OBGD>. |
| MHRA | 'OBGD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OBGD> [accessed 14 February 2012] |
| Chicago | "OBGD", http://www.acronymgeek.com/OBGD (accessed February 14, 2012). |
| CBE/CSE | OBGD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OBGD. |
| Bluebook | OBGD, http://www.acronymgeek.com/OBGD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBGD, http://www.acronymgeek.com/OBGD (optional description here) (as of Feb. 14, 2012, 15:45). |
| AMA | OBGD. Acronym Geek. February 14, 2012, 15:45. Available at: http://www.acronymgeek.com/OBGD. Accessed February 14, 2012, 15:45. |