| APA | GPZH. (2012, February 16). In Acronym Geek. Retrieved 06:51, February 16, 2012, from http://www.acronymgeek.com/GPZH |
| MLA | "GPZH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GPZH>. |
| MHRA | 'GPZH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GPZH> [accessed 16 February 2012] |
| Chicago | "GPZH", http://www.acronymgeek.com/GPZH (accessed February 16, 2012). |
| CBE/CSE | GPZH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GPZH. |
| Bluebook | GPZH, http://www.acronymgeek.com/GPZH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPZH, http://www.acronymgeek.com/GPZH (optional description here) (as of Feb. 16, 2012, 06:51). |
| AMA | GPZH. Acronym Geek. February 16, 2012, 06:51. Available at: http://www.acronymgeek.com/GPZH. Accessed February 16, 2012, 06:51. |