| APA | Lower Trophic Level (LTL). (2012, February 14). In Acronym Geek. Retrieved 05:49, February 14, 2012, from http://www.acronymgeek.com/LTL/Lower_Trophic_Level |
| MLA | "Lower Trophic Level (LTL)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LTL/Lower_Trophic_Level>. |
| MHRA | 'Lower Trophic Level (LTL)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LTL/Lower_Trophic_Level> [accessed 14 February 2012] |
| Chicago | "Lower Trophic Level (LTL)", http://www.acronymgeek.com/LTL/Lower_Trophic_Level (accessed February 14, 2012). |
| CBE/CSE | Lower Trophic Level (LTL) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LTL/Lower_Trophic_Level. |
| Bluebook | Lower Trophic Level (LTL), http://www.acronymgeek.com/LTL/Lower_Trophic_Level (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Lower Trophic Level (LTL), http://www.acronymgeek.com/LTL/Lower_Trophic_Level (optional description here) (as of Feb. 14, 2012, 05:49). |
| AMA | Lower Trophic Level (LTL). Acronym Geek. February 14, 2012, 05:49. Available at: http://www.acronymgeek.com/LTL/Lower_Trophic_Level. Accessed February 14, 2012, 05:49. |