| APA | HGPW. (2012, February 15). In Acronym Geek. Retrieved 07:08, February 15, 2012, from http://www.acronymgeek.com/HGPW |
| MLA | "HGPW." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HGPW>. |
| MHRA | 'HGPW', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HGPW> [accessed 15 February 2012] |
| Chicago | "HGPW", http://www.acronymgeek.com/HGPW (accessed February 15, 2012). |
| CBE/CSE | HGPW [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HGPW. |
| Bluebook | HGPW, http://www.acronymgeek.com/HGPW (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HGPW, http://www.acronymgeek.com/HGPW (optional description here) (as of Feb. 15, 2012, 07:08). |
| AMA | HGPW. Acronym Geek. February 15, 2012, 07:08. Available at: http://www.acronymgeek.com/HGPW. Accessed February 15, 2012, 07:08. |