| Style | Reference Text |
|---|
| APA | DR HD. (2009, November 9). In All Acronyms. Retrieved 05:18, November 9, 2009, from http://www.all-acronyms.com/cat/0/DR+HD |
| MLA | "DR HD." All Acronyms. 9 Nov 2009, 05:18. All Acronyms. 9 Nov 2009 <http://www.all-acronyms.com/cat/0/DR+HD>. |
| MHRA | 'DR HD', All Acronyms, 9 November 2009, 05:18, <http://www.all-acronyms.com/cat/0/DR+HD> [accessed 9 November 2009] |
| Chicago | "DR HD," http://www.all-acronyms.com/cat/0/DR+HD (accessed November 9, 2009). |
| CBE/CSE | DR HD [Internet]. All Acronyms; 2009 Nov 9, 05:18 [cited 2009 Nov 9]. Available from: http://www.all-acronyms.com/cat/0/DR+HD. |
| Bluebook | DR HD, http://www.all-acronyms.com/cat/0/DR+HD (last visited November 9, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, DR HD, http://www.all-acronyms.com/cat/0/DR+HD (optional description here) (as of Nov. 9, 2009, 05:18). |
| AMA | DR HD. All Acronyms. November 9, 2009, 05:18. Available at: http://www.all-acronyms.com/cat/0/DR+HD. Accessed November 9, 2009. |
Drill Head