| APA | BIG. (2012, February 14). In Acronym Geek. Retrieved 09:39, February 14, 2012, from http://www.acronymgeek.com/BIG |
| MLA | "BIG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/BIG>. |
| MHRA | 'BIG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/BIG> [accessed 14 February 2012] |
| Chicago | "BIG", http://www.acronymgeek.com/BIG (accessed February 14, 2012). |
| CBE/CSE | BIG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/BIG. |
| Bluebook | BIG, http://www.acronymgeek.com/BIG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BIG, http://www.acronymgeek.com/BIG (optional description here) (as of Feb. 14, 2012, 09:39). |
| AMA | BIG. Acronym Geek. February 14, 2012, 09:39. Available at: http://www.acronymgeek.com/BIG. Accessed February 14, 2012, 09:39. |