| APA | PNBT. (2012, February 16). In Acronym Geek. Retrieved 07:55, February 16, 2012, from http://www.acronymgeek.com/PNBT |
| MLA | "PNBT." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PNBT>. |
| MHRA | 'PNBT', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PNBT> [accessed 16 February 2012] |
| Chicago | "PNBT", http://www.acronymgeek.com/PNBT (accessed February 16, 2012). |
| CBE/CSE | PNBT [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PNBT. |
| Bluebook | PNBT, http://www.acronymgeek.com/PNBT (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PNBT, http://www.acronymgeek.com/PNBT (optional description here) (as of Feb. 16, 2012, 07:55). |
| AMA | PNBT. Acronym Geek. February 16, 2012, 07:55. Available at: http://www.acronymgeek.com/PNBT. Accessed February 16, 2012, 07:55. |