| APA | GCAX. (2012, February 16). In Acronym Geek. Retrieved 06:08, February 16, 2012, from http://www.acronymgeek.com/GCAX |
| MLA | "GCAX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GCAX>. |
| MHRA | 'GCAX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GCAX> [accessed 16 February 2012] |
| Chicago | "GCAX", http://www.acronymgeek.com/GCAX (accessed February 16, 2012). |
| CBE/CSE | GCAX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GCAX. |
| Bluebook | GCAX, http://www.acronymgeek.com/GCAX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCAX, http://www.acronymgeek.com/GCAX (optional description here) (as of Feb. 16, 2012, 06:08). |
| AMA | GCAX. Acronym Geek. February 16, 2012, 06:08. Available at: http://www.acronymgeek.com/GCAX. Accessed February 16, 2012, 06:08. |