| APA | PDF. (2012, February 13). In Acronym Geek. Retrieved 21:29, February 13, 2012, from http://www.acronymgeek.com/PDF |
| MLA | "PDF." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/PDF>. |
| MHRA | 'PDF', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/PDF> [accessed 13 February 2012] |
| Chicago | "PDF", http://www.acronymgeek.com/PDF (accessed February 13, 2012). |
| CBE/CSE | PDF [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/PDF. |
| Bluebook | PDF, http://www.acronymgeek.com/PDF (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDF, http://www.acronymgeek.com/PDF (optional description here) (as of Feb. 13, 2012, 21:29). |
| AMA | PDF. Acronym Geek. February 13, 2012, 21:29. Available at: http://www.acronymgeek.com/PDF. Accessed February 13, 2012, 21:29. |