| APA | G4C. (2012, February 13). In Acronym Geek. Retrieved 20:52, February 13, 2012, from http://www.acronymgeek.com/G4C |
| MLA | "G4C." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/G4C>. |
| MHRA | 'G4C', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/G4C> [accessed 13 February 2012] |
| Chicago | "G4C", http://www.acronymgeek.com/G4C (accessed February 13, 2012). |
| CBE/CSE | G4C [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/G4C. |
| Bluebook | G4C, http://www.acronymgeek.com/G4C (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, G4C, http://www.acronymgeek.com/G4C (optional description here) (as of Feb. 13, 2012, 20:52). |
| AMA | G4C. Acronym Geek. February 13, 2012, 20:52. Available at: http://www.acronymgeek.com/G4C. Accessed February 13, 2012, 20:52. |