Poult is right WMA's are most often Privately held lands which in most cases are managed by the state or Federal Wildlife Dept's.
WMA's are a big part of public hunting in the South and the season dates are normally different the regular State dates, sometimes only Lottory pics are taken to hunt some of these areas- Typically, the hunting is very good because the lands and wildlife are managed so well- At least thats the case here in Louisiana- Most of our biggest Deer and Turkeys are taken off the WMA's.
Alot of these lands are owned by Timber Co, but most down here in the lower part of the state are owned by the Army Corp of Eng..

Here state residents are required to purchase the normal state license, and then if they wish to hunt a WMA they are required to purchase a WMA Lic for an additional $25 but is good for any WMA State Wide-

Hope that helps