Handook, Harpers Ferry, West Virginia Harpers Ferry National Historical ParkFortifications. Loudoun Heights. Handbook. Original caption: NHF 1978, Fortifications, Loudoun Heights, A.L. Sullivan, May 1962.
SC State Park Manual, 1949South Carolina State Parks1949 State Park Manual containing information on general purpose, personnel, supply and property, maintenance and operations, safety, first aid, sanitation, public relations, and recreational programs.