| Style | Reference Text |
|---|
| APA | HDU tagged aviation. (2013, May 23). In All Acronyms. Retrieved 18:37, May 23, 2013, from http://www.all-acronyms.com/HDU/tag/aviation |
| MLA | "HDU tagged aviation." All Acronyms. 23 May 2013, 18:37. All Acronyms. 23 May 2013 <http://www.all-acronyms.com/HDU/tag/aviation>. |
| MHRA | 'HDU tagged aviation', All Acronyms, 23 May 2013, 18:37, <http://www.all-acronyms.com/HDU/tag/aviation> [accessed 23 May 2013] |
| Chicago | "HDU tagged aviation," http://www.all-acronyms.com/HDU/tag/aviation (accessed May 23, 2013). |
| CBE/CSE | HDU tagged aviation [Internet]. All Acronyms; 2013 May 23, 18:37 [cited 2013 May 23]. Available from: http://www.all-acronyms.com/HDU/tag/aviation. |
| Bluebook | HDU tagged aviation, http://www.all-acronyms.com/HDU/tag/aviation (last visited May 23, 2013). |
| Bluebook: Harvard JOLT | See All Acronyms, HDU tagged aviation, http://www.all-acronyms.com/HDU/tag/aviation (optional description here) (as of May. 23, 2013, 18:37). |
| AMA | HDU tagged aviation. All Acronyms. May 23, 2013, 18:37. Available at: http://www.all-acronyms.com/HDU/tag/aviation. Accessed May 23, 2013. |
Helicopter Development Unit