| APA | GPRD. (2012, February 14). In Acronym Geek. Retrieved 17:37, February 14, 2012, from http://www.acronymgeek.com/GPRD |
| MLA | "GPRD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GPRD>. |
| MHRA | 'GPRD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GPRD> [accessed 14 February 2012] |
| Chicago | "GPRD", http://www.acronymgeek.com/GPRD (accessed February 14, 2012). |
| CBE/CSE | GPRD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GPRD. |
| Bluebook | GPRD, http://www.acronymgeek.com/GPRD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPRD, http://www.acronymgeek.com/GPRD (optional description here) (as of Feb. 14, 2012, 17:37). |
| AMA | GPRD. Acronym Geek. February 14, 2012, 17:37. Available at: http://www.acronymgeek.com/GPRD. Accessed February 14, 2012, 17:37. |