| Style | Reference Text |
|---|
| APA | HDU. (2013, May 20). In All Acronyms. Retrieved 01:03, May 20, 2013, from http://www.all-acronyms.com/cat/9/HDU |
| MLA | "HDU." All Acronyms. 20 May 2013, 01:03. All Acronyms. 20 May 2013 <http://www.all-acronyms.com/cat/9/HDU>. |
| MHRA | 'HDU', All Acronyms, 20 May 2013, 01:03, <http://www.all-acronyms.com/cat/9/HDU> [accessed 20 May 2013] |
| Chicago | "HDU," http://www.all-acronyms.com/cat/9/HDU (accessed May 20, 2013). |
| CBE/CSE | HDU [Internet]. All Acronyms; 2013 May 20, 01:03 [cited 2013 May 20]. Available from: http://www.all-acronyms.com/cat/9/HDU. |
| Bluebook | HDU, http://www.all-acronyms.com/cat/9/HDU (last visited May 20, 2013). |
| Bluebook: Harvard JOLT | See All Acronyms, HDU, http://www.all-acronyms.com/cat/9/HDU (optional description here) (as of May. 20, 2013, 01:03). |
| AMA | HDU. All Acronyms. May 20, 2013, 01:03. Available at: http://www.all-acronyms.com/cat/9/HDU. Accessed May 20, 2013. |
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