| APA | PHDC. (2012, February 15). In Acronym Geek. Retrieved 12:19, February 15, 2012, from http://www.acronymgeek.com/PHDC |
| MLA | "PHDC." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PHDC>. |
| MHRA | 'PHDC', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PHDC> [accessed 15 February 2012] |
| Chicago | "PHDC", http://www.acronymgeek.com/PHDC (accessed February 15, 2012). |
| CBE/CSE | PHDC [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PHDC. |
| Bluebook | PHDC, http://www.acronymgeek.com/PHDC (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PHDC, http://www.acronymgeek.com/PHDC (optional description here) (as of Feb. 15, 2012, 12:19). |
| AMA | PHDC. Acronym Geek. February 15, 2012, 12:19. Available at: http://www.acronymgeek.com/PHDC. Accessed February 15, 2012, 12:19. |