| APA | PGBU. (2012, February 14). In Acronym Geek. Retrieved 00:54, February 14, 2012, from http://www.acronymgeek.com/PGBU |
| MLA | "PGBU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PGBU>. |
| MHRA | 'PGBU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PGBU> [accessed 14 February 2012] |
| Chicago | "PGBU", http://www.acronymgeek.com/PGBU (accessed February 14, 2012). |
| CBE/CSE | PGBU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PGBU. |
| Bluebook | PGBU, http://www.acronymgeek.com/PGBU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGBU, http://www.acronymgeek.com/PGBU (optional description here) (as of Feb. 14, 2012, 00:54). |
| AMA | PGBU. Acronym Geek. February 14, 2012, 00:54. Available at: http://www.acronymgeek.com/PGBU. Accessed February 14, 2012, 00:54. |