| APA | GPRB. (2012, February 16). In Acronym Geek. Retrieved 10:58, February 16, 2012, from http://www.acronymgeek.com/GPRB |
| MLA | "GPRB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GPRB>. |
| MHRA | 'GPRB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GPRB> [accessed 16 February 2012] |
| Chicago | "GPRB", http://www.acronymgeek.com/GPRB (accessed February 16, 2012). |
| CBE/CSE | GPRB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GPRB. |
| Bluebook | GPRB, http://www.acronymgeek.com/GPRB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPRB, http://www.acronymgeek.com/GPRB (optional description here) (as of Feb. 16, 2012, 10:58). |
| AMA | GPRB. Acronym Geek. February 16, 2012, 10:58. Available at: http://www.acronymgeek.com/GPRB. Accessed February 16, 2012, 10:58. |