| APA | Efficiency and Speed (ES). (2012, February 14). In Acronym Geek. Retrieved 05:48, February 14, 2012, from http://www.acronymgeek.com/ES/Efficiency_and_Speed |
| MLA | "Efficiency and Speed (ES)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ES/Efficiency_and_Speed>. |
| MHRA | 'Efficiency and Speed (ES)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ES/Efficiency_and_Speed> [accessed 14 February 2012] |
| Chicago | "Efficiency and Speed (ES)", http://www.acronymgeek.com/ES/Efficiency_and_Speed (accessed February 14, 2012). |
| CBE/CSE | Efficiency and Speed (ES) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ES/Efficiency_and_Speed. |
| Bluebook | Efficiency and Speed (ES), http://www.acronymgeek.com/ES/Efficiency_and_Speed (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Efficiency and Speed (ES), http://www.acronymgeek.com/ES/Efficiency_and_Speed (optional description here) (as of Feb. 14, 2012, 05:48). |
| AMA | Efficiency and Speed (ES). Acronym Geek. February 14, 2012, 05:48. Available at: http://www.acronymgeek.com/ES/Efficiency_and_Speed. Accessed February 14, 2012, 05:48. |