| APA | PEL. (2012, February 14). In Acronym Geek. Retrieved 12:04, February 14, 2012, from http://www.acronymgeek.com/PEL |
| MLA | "PEL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PEL>. |
| MHRA | 'PEL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PEL> [accessed 14 February 2012] |
| Chicago | "PEL", http://www.acronymgeek.com/PEL (accessed February 14, 2012). |
| CBE/CSE | PEL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PEL. |
| Bluebook | PEL, http://www.acronymgeek.com/PEL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PEL, http://www.acronymgeek.com/PEL (optional description here) (as of Feb. 14, 2012, 12:04). |
| AMA | PEL. Acronym Geek. February 14, 2012, 12:04. Available at: http://www.acronymgeek.com/PEL. Accessed February 14, 2012, 12:04. |