| APA | VGSI. (2012, February 15). In Acronym Geek. Retrieved 18:15, February 15, 2012, from http://www.acronymgeek.com/VGSI |
| MLA | "VGSI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/VGSI>. |
| MHRA | 'VGSI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/VGSI> [accessed 15 February 2012] |
| Chicago | "VGSI", http://www.acronymgeek.com/VGSI (accessed February 15, 2012). |
| CBE/CSE | VGSI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/VGSI. |
| Bluebook | VGSI, http://www.acronymgeek.com/VGSI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VGSI, http://www.acronymgeek.com/VGSI (optional description here) (as of Feb. 15, 2012, 18:15). |
| AMA | VGSI. Acronym Geek. February 15, 2012, 18:15. Available at: http://www.acronymgeek.com/VGSI. Accessed February 15, 2012, 18:15. |