| APA | PDA. (2012, February 13). In Acronym Geek. Retrieved 23:55, February 13, 2012, from http://www.acronymgeek.com/PDA |
| MLA | "PDA." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/PDA>. |
| MHRA | 'PDA', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/PDA> [accessed 13 February 2012] |
| Chicago | "PDA", http://www.acronymgeek.com/PDA (accessed February 13, 2012). |
| CBE/CSE | PDA [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/PDA. |
| Bluebook | PDA, http://www.acronymgeek.com/PDA (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDA, http://www.acronymgeek.com/PDA (optional description here) (as of Feb. 13, 2012, 23:55). |
| AMA | PDA. Acronym Geek. February 13, 2012, 23:55. Available at: http://www.acronymgeek.com/PDA. Accessed February 13, 2012, 23:55. |