| APA | DHLO. (2012, February 15). In Acronym Geek. Retrieved 17:49, February 15, 2012, from http://www.acronymgeek.com/DHLO |
| MLA | "DHLO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DHLO>. |
| MHRA | 'DHLO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DHLO> [accessed 15 February 2012] |
| Chicago | "DHLO", http://www.acronymgeek.com/DHLO (accessed February 15, 2012). |
| CBE/CSE | DHLO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DHLO. |
| Bluebook | DHLO, http://www.acronymgeek.com/DHLO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DHLO, http://www.acronymgeek.com/DHLO (optional description here) (as of Feb. 15, 2012, 17:49). |
| AMA | DHLO. Acronym Geek. February 15, 2012, 17:49. Available at: http://www.acronymgeek.com/DHLO. Accessed February 15, 2012, 17:49. |