| APA | USDA. (2012, February 9). In Acronym Geek. Retrieved 21:28, February 9, 2012, from http://www.acronymgeek.com/USDA |
| MLA | "USDA." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/USDA>. |
| MHRA | 'USDA', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/USDA> [accessed 9 February 2012] |
| Chicago | "USDA", http://www.acronymgeek.com/USDA (accessed February 9, 2012). |
| CBE/CSE | USDA [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/USDA. |
| Bluebook | USDA, http://www.acronymgeek.com/USDA (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, USDA, http://www.acronymgeek.com/USDA (optional description here) (as of Feb. 9, 2012, 21:28). |
| AMA | USDA. Acronym Geek. February 9, 2012, 21:28. Available at: http://www.acronymgeek.com/USDA. Accessed February 9, 2012, 21:28. |