Petroleum Administration for Defense District. The United States is divided into five distinct marketing regions in which prices might differ due to variations in the supply or demand.
Barry Goldsmith
| APA | Barry Goldsmith. (2010). pad (or padd). Retrieved September 23, 2026, from http://smartdefine.org/pad_(or_padd)/definitions/1160114 |
| Chicago | Barry Goldsmith. 2010. "pad (or padd)" http://smartdefine.org/pad_(or_padd)/definitions/1160114 (accessed September 23, 2026). |
| Harvard | Barry Goldsmith 2010, pad (or padd), Smart Define, viewed 23 September, 2026, <http://smartdefine.org/pad_(or_padd)/definitions/1160114>. |
| MLA | Barry Goldsmith. "pad (or padd)" 21 October 2010. Web. 23 September 2026. <http://smartdefine.org/pad_(or_padd)/definitions/1160114> |