| APA | PLH. (2012, February 14). In Acronym Geek. Retrieved 20:34, February 14, 2012, from http://www.acronymgeek.com/PLH |
| MLA | "PLH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PLH>. |
| MHRA | 'PLH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PLH> [accessed 14 February 2012] |
| Chicago | "PLH", http://www.acronymgeek.com/PLH (accessed February 14, 2012). |
| CBE/CSE | PLH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PLH. |
| Bluebook | PLH, http://www.acronymgeek.com/PLH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PLH, http://www.acronymgeek.com/PLH (optional description here) (as of Feb. 14, 2012, 20:34). |
| AMA | PLH. Acronym Geek. February 14, 2012, 20:34. Available at: http://www.acronymgeek.com/PLH. Accessed February 14, 2012, 20:34. |