| APA | APTA. (2012, February 14). In Acronym Geek. Retrieved 00:14, February 14, 2012, from http://www.acronymgeek.com/APTA |
| MLA | "APTA." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/APTA>. |
| MHRA | 'APTA', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/APTA> [accessed 14 February 2012] |
| Chicago | "APTA", http://www.acronymgeek.com/APTA (accessed February 14, 2012). |
| CBE/CSE | APTA [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/APTA. |
| Bluebook | APTA, http://www.acronymgeek.com/APTA (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, APTA, http://www.acronymgeek.com/APTA (optional description here) (as of Feb. 14, 2012, 00:14). |
| AMA | APTA. Acronym Geek. February 14, 2012, 00:14. Available at: http://www.acronymgeek.com/APTA. Accessed February 14, 2012, 00:14. |