| APA | GUID. (2012, February 14). In Acronym Geek. Retrieved 18:19, February 14, 2012, from http://www.acronymgeek.com/GUID |
| MLA | "GUID." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GUID>. |
| MHRA | 'GUID', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GUID> [accessed 14 February 2012] |
| Chicago | "GUID", http://www.acronymgeek.com/GUID (accessed February 14, 2012). |
| CBE/CSE | GUID [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GUID. |
| Bluebook | GUID, http://www.acronymgeek.com/GUID (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUID, http://www.acronymgeek.com/GUID (optional description here) (as of Feb. 14, 2012, 18:19). |
| AMA | GUID. Acronym Geek. February 14, 2012, 18:19. Available at: http://www.acronymgeek.com/GUID. Accessed February 14, 2012, 18:19. |