| APA | PORTUGUESE AIR FORCE. (2012, February 12). In Acronym Geek. Retrieved 20:05, February 12, 2012, from http://www.acronymgeek.com/PORTUGUESE AIR FORCE |
| MLA | "PORTUGUESE AIR FORCE." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/PORTUGUESE AIR FORCE>. |
| MHRA | 'PORTUGUESE AIR FORCE', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/PORTUGUESE AIR FORCE> [accessed 12 February 2012] |
| Chicago | "PORTUGUESE AIR FORCE", http://www.acronymgeek.com/PORTUGUESE AIR FORCE (accessed February 12, 2012). |
| CBE/CSE | PORTUGUESE AIR FORCE [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/PORTUGUESE AIR FORCE. |
| Bluebook | PORTUGUESE AIR FORCE, http://www.acronymgeek.com/PORTUGUESE AIR FORCE (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PORTUGUESE AIR FORCE, http://www.acronymgeek.com/PORTUGUESE AIR FORCE (optional description here) (as of Feb. 12, 2012, 20:05). |
| AMA | PORTUGUESE AIR FORCE. Acronym Geek. February 12, 2012, 20:05. Available at: http://www.acronymgeek.com/PORTUGUESE AIR FORCE. Accessed February 12, 2012, 20:05. |