| APA | DPI. (2012, February 4). In Acronym Geek. Retrieved 11:33, February 4, 2012, from http://www.acronymgeek.com/DPI |
| MLA | "DPI." Acronym Geek. (2012). Acronym Geek. 4 Feb 2012 <http://www.acronymgeek.com/DPI>. |
| MHRA | 'DPI', Acronym Geek, 4 February 2012, <http://www.acronymgeek.com/DPI> [accessed 4 February 2012] |
| Chicago | "DPI", http://www.acronymgeek.com/DPI (accessed February 4, 2012). |
| CBE/CSE | DPI [Internet]. Acronym Geek; 2012 Feb 4 [cited 2012 Feb 4]. Available from: http://www.acronymgeek.com/DPI. |
| Bluebook | DPI, http://www.acronymgeek.com/DPI (last visited February 4, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DPI, http://www.acronymgeek.com/DPI (optional description here) (as of Feb. 4, 2012, 11:33). |
| AMA | DPI. Acronym Geek. February 4, 2012, 11:33. Available at: http://www.acronymgeek.com/DPI. Accessed February 4, 2012, 11:33. |