| APA | BIGD. (2012, February 16). In Acronym Geek. Retrieved 20:14, February 16, 2012, from http://www.acronymgeek.com/BIGD |
| MLA | "BIGD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/BIGD>. |
| MHRA | 'BIGD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/BIGD> [accessed 16 February 2012] |
| Chicago | "BIGD", http://www.acronymgeek.com/BIGD (accessed February 16, 2012). |
| CBE/CSE | BIGD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/BIGD. |
| Bluebook | BIGD, http://www.acronymgeek.com/BIGD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BIGD, http://www.acronymgeek.com/BIGD (optional description here) (as of Feb. 16, 2012, 20:14). |
| AMA | BIGD. Acronym Geek. February 16, 2012, 20:14. Available at: http://www.acronymgeek.com/BIGD. Accessed February 16, 2012, 20:14. |