| APA | PEMEX. (2012, February 10). In Acronym Geek. Retrieved 09:25, February 10, 2012, from http://www.acronymgeek.com/PEMEX |
| MLA | "PEMEX." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/PEMEX>. |
| MHRA | 'PEMEX', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/PEMEX> [accessed 10 February 2012] |
| Chicago | "PEMEX", http://www.acronymgeek.com/PEMEX (accessed February 10, 2012). |
| CBE/CSE | PEMEX [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/PEMEX. |
| Bluebook | PEMEX, http://www.acronymgeek.com/PEMEX (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PEMEX, http://www.acronymgeek.com/PEMEX (optional description here) (as of Feb. 10, 2012, 09:25). |
| AMA | PEMEX. Acronym Geek. February 10, 2012, 09:25. Available at: http://www.acronymgeek.com/PEMEX. Accessed February 10, 2012, 09:25. |