| APA | GCGP. (2012, February 14). In Acronym Geek. Retrieved 13:32, February 14, 2012, from http://www.acronymgeek.com/GCGP |
| MLA | "GCGP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GCGP>. |
| MHRA | 'GCGP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GCGP> [accessed 14 February 2012] |
| Chicago | "GCGP", http://www.acronymgeek.com/GCGP (accessed February 14, 2012). |
| CBE/CSE | GCGP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GCGP. |
| Bluebook | GCGP, http://www.acronymgeek.com/GCGP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCGP, http://www.acronymgeek.com/GCGP (optional description here) (as of Feb. 14, 2012, 13:32). |
| AMA | GCGP. Acronym Geek. February 14, 2012, 13:32. Available at: http://www.acronymgeek.com/GCGP. Accessed February 14, 2012, 13:32. |