| APA | SP GUIN. (2012, February 10). In Acronym Geek. Retrieved 10:04, February 10, 2012, from http://www.acronymgeek.com/SP GUIN |
| MLA | "SP GUIN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/SP GUIN>. |
| MHRA | 'SP GUIN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/SP GUIN> [accessed 10 February 2012] |
| Chicago | "SP GUIN", http://www.acronymgeek.com/SP GUIN (accessed February 10, 2012). |
| CBE/CSE | SP GUIN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/SP GUIN. |
| Bluebook | SP GUIN, http://www.acronymgeek.com/SP GUIN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SP GUIN, http://www.acronymgeek.com/SP GUIN (optional description here) (as of Feb. 10, 2012, 10:04). |
| AMA | SP GUIN. Acronym Geek. February 10, 2012, 10:04. Available at: http://www.acronymgeek.com/SP GUIN. Accessed February 10, 2012, 10:04. |