| APA | PORTUGALIA. (2012, February 12). In Acronym Geek. Retrieved 13:55, February 12, 2012, from http://www.acronymgeek.com/PORTUGALIA |
| MLA | "PORTUGALIA." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/PORTUGALIA>. |
| MHRA | 'PORTUGALIA', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/PORTUGALIA> [accessed 12 February 2012] |
| Chicago | "PORTUGALIA", http://www.acronymgeek.com/PORTUGALIA (accessed February 12, 2012). |
| CBE/CSE | PORTUGALIA [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/PORTUGALIA. |
| Bluebook | PORTUGALIA, http://www.acronymgeek.com/PORTUGALIA (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PORTUGALIA, http://www.acronymgeek.com/PORTUGALIA (optional description here) (as of Feb. 12, 2012, 13:55). |
| AMA | PORTUGALIA. Acronym Geek. February 12, 2012, 13:55. Available at: http://www.acronymgeek.com/PORTUGALIA. Accessed February 12, 2012, 13:55. |