| APA | GS-PDD. (2012, February 12). In Acronym Geek. Retrieved 09:10, February 12, 2012, from http://www.acronymgeek.com/GS-PDD |
| MLA | "GS-PDD." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/GS-PDD>. |
| MHRA | 'GS-PDD', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/GS-PDD> [accessed 12 February 2012] |
| Chicago | "GS-PDD", http://www.acronymgeek.com/GS-PDD (accessed February 12, 2012). |
| CBE/CSE | GS-PDD [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/GS-PDD. |
| Bluebook | GS-PDD, http://www.acronymgeek.com/GS-PDD (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GS-PDD, http://www.acronymgeek.com/GS-PDD (optional description here) (as of Feb. 12, 2012, 09:10). |
| AMA | GS-PDD. Acronym Geek. February 12, 2012, 09:10. Available at: http://www.acronymgeek.com/GS-PDD. Accessed February 12, 2012, 09:10. |