| APA | APP. (2012, February 14). In Acronym Geek. Retrieved 10:18, February 14, 2012, from http://www.acronymgeek.com/APP |
| MLA | "APP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/APP>. |
| MHRA | 'APP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/APP> [accessed 14 February 2012] |
| Chicago | "APP", http://www.acronymgeek.com/APP (accessed February 14, 2012). |
| CBE/CSE | APP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/APP. |
| Bluebook | APP, http://www.acronymgeek.com/APP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, APP, http://www.acronymgeek.com/APP (optional description here) (as of Feb. 14, 2012, 10:18). |
| AMA | APP. Acronym Geek. February 14, 2012, 10:18. Available at: http://www.acronymgeek.com/APP. Accessed February 14, 2012, 10:18. |