Chattahoochee River, Seward, Chickasaw NRA, and Valley Forge National Historical Park : hearing before the Subcommittee on Parks and Recreation of the Committee on Interior and Insular Affairs, United States Senate, Ninety-fourth Congress, first session on S. 661, a bill to authorize the establishment of the Chattahoochee River National Recreation Area in the State of Georgia, and for other purposes ; S. 847, a bill to establish the Seward National Recreation Area in the State of Alaska, and for other purposes ; S. 1725, a bill to authorize the establish the Chickasaw National Recreation Area in the State of Oklahoma, and for other purposes ; [and] S.1776, a bill to authorize the Secretary of the Interior to establish the Valley Forge National Historical Park in the Commonwealth of Pennsylvania, and for other purposes, October 30, 1975. (U.S. Govt. Print. Off,, 1976)