| APA | NBBO. (2012, February 10). In Acronym Geek. Retrieved 07:59, February 10, 2012, from http://www.acronymgeek.com/NBBO |
| MLA | "NBBO." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/NBBO>. |
| MHRA | 'NBBO', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/NBBO> [accessed 10 February 2012] |
| Chicago | "NBBO", http://www.acronymgeek.com/NBBO (accessed February 10, 2012). |
| CBE/CSE | NBBO [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/NBBO. |
| Bluebook | NBBO, http://www.acronymgeek.com/NBBO (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NBBO, http://www.acronymgeek.com/NBBO (optional description here) (as of Feb. 10, 2012, 07:59). |
| AMA | NBBO. Acronym Geek. February 10, 2012, 07:59. Available at: http://www.acronymgeek.com/NBBO. Accessed February 10, 2012, 07:59. |