| APA | HLDR. (2012, February 15). In Acronym Geek. Retrieved 21:22, February 15, 2012, from http://www.acronymgeek.com/HLDR |
| MLA | "HLDR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HLDR>. |
| MHRA | 'HLDR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HLDR> [accessed 15 February 2012] |
| Chicago | "HLDR", http://www.acronymgeek.com/HLDR (accessed February 15, 2012). |
| CBE/CSE | HLDR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HLDR. |
| Bluebook | HLDR, http://www.acronymgeek.com/HLDR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HLDR, http://www.acronymgeek.com/HLDR (optional description here) (as of Feb. 15, 2012, 21:22). |
| AMA | HLDR. Acronym Geek. February 15, 2012, 21:22. Available at: http://www.acronymgeek.com/HLDR. Accessed February 15, 2012, 21:22. |