| APA | PDFH. (2012, February 15). In Acronym Geek. Retrieved 07:16, February 15, 2012, from http://www.acronymgeek.com/PDFH |
| MLA | "PDFH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PDFH>. |
| MHRA | 'PDFH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PDFH> [accessed 15 February 2012] |
| Chicago | "PDFH", http://www.acronymgeek.com/PDFH (accessed February 15, 2012). |
| CBE/CSE | PDFH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PDFH. |
| Bluebook | PDFH, http://www.acronymgeek.com/PDFH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDFH, http://www.acronymgeek.com/PDFH (optional description here) (as of Feb. 15, 2012, 07:16). |
| AMA | PDFH. Acronym Geek. February 15, 2012, 07:16. Available at: http://www.acronymgeek.com/PDFH. Accessed February 15, 2012, 07:16. |