| APA | NBOE. (2012, February 14). In Acronym Geek. Retrieved 00:51, February 14, 2012, from http://www.acronymgeek.com/NBOE |
| MLA | "NBOE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NBOE>. |
| MHRA | 'NBOE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NBOE> [accessed 14 February 2012] |
| Chicago | "NBOE", http://www.acronymgeek.com/NBOE (accessed February 14, 2012). |
| CBE/CSE | NBOE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NBOE. |
| Bluebook | NBOE, http://www.acronymgeek.com/NBOE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NBOE, http://www.acronymgeek.com/NBOE (optional description here) (as of Feb. 14, 2012, 00:51). |
| AMA | NBOE. Acronym Geek. February 14, 2012, 00:51. Available at: http://www.acronymgeek.com/NBOE. Accessed February 14, 2012, 00:51. |