| APA | GDHL. (2012, February 14). In Acronym Geek. Retrieved 12:19, February 14, 2012, from http://www.acronymgeek.com/GDHL |
| MLA | "GDHL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GDHL>. |
| MHRA | 'GDHL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GDHL> [accessed 14 February 2012] |
| Chicago | "GDHL", http://www.acronymgeek.com/GDHL (accessed February 14, 2012). |
| CBE/CSE | GDHL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GDHL. |
| Bluebook | GDHL, http://www.acronymgeek.com/GDHL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDHL, http://www.acronymgeek.com/GDHL (optional description here) (as of Feb. 14, 2012, 12:19). |
| AMA | GDHL. Acronym Geek. February 14, 2012, 12:19. Available at: http://www.acronymgeek.com/GDHL. Accessed February 14, 2012, 12:19. |