| APA | GPM. (2012, February 13). In Acronym Geek. Retrieved 23:16, February 13, 2012, from http://www.acronymgeek.com/GPM |
| MLA | "GPM." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/GPM>. |
| MHRA | 'GPM', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/GPM> [accessed 13 February 2012] |
| Chicago | "GPM", http://www.acronymgeek.com/GPM (accessed February 13, 2012). |
| CBE/CSE | GPM [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/GPM. |
| Bluebook | GPM, http://www.acronymgeek.com/GPM (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GPM, http://www.acronymgeek.com/GPM (optional description here) (as of Feb. 13, 2012, 23:16). |
| AMA | GPM. Acronym Geek. February 13, 2012, 23:16. Available at: http://www.acronymgeek.com/GPM. Accessed February 13, 2012, 23:16. |