| APA | PDFF. (2012, February 15). In Acronym Geek. Retrieved 08:27, February 15, 2012, from http://www.acronymgeek.com/PDFF |
| MLA | "PDFF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PDFF>. |
| MHRA | 'PDFF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PDFF> [accessed 15 February 2012] |
| Chicago | "PDFF", http://www.acronymgeek.com/PDFF (accessed February 15, 2012). |
| CBE/CSE | PDFF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PDFF. |
| Bluebook | PDFF, http://www.acronymgeek.com/PDFF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDFF, http://www.acronymgeek.com/PDFF (optional description here) (as of Feb. 15, 2012, 08:27). |
| AMA | PDFF. Acronym Geek. February 15, 2012, 08:27. Available at: http://www.acronymgeek.com/PDFF. Accessed February 15, 2012, 08:27. |