| APA | GZBK. (2012, February 17). In Acronym Geek. Retrieved 00:23, February 17, 2012, from http://www.acronymgeek.com/GZBK |
| MLA | "GZBK." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/GZBK>. |
| MHRA | 'GZBK', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/GZBK> [accessed 17 February 2012] |
| Chicago | "GZBK", http://www.acronymgeek.com/GZBK (accessed February 17, 2012). |
| CBE/CSE | GZBK [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/GZBK. |
| Bluebook | GZBK, http://www.acronymgeek.com/GZBK (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GZBK, http://www.acronymgeek.com/GZBK (optional description here) (as of Feb. 17, 2012, 00:23). |
| AMA | GZBK. Acronym Geek. February 17, 2012, 00:23. Available at: http://www.acronymgeek.com/GZBK. Accessed February 17, 2012, 00:23. |