"Southwestern Pennsylvania's Covered Bridge Festival, September 20 & 21, 1980."; "Washington-Greene County Tourist Promotion Agency (Washington, Pa.)"; "Covered bridges--Pennsylvania.", "Festivals--Pennsylvania."; "Washington-Greene County Tourist Promotion Agency (Washington, Pa.)"; "1980"; "

Event program.

"; ""; "P14808"; "pec"; "Covered bridges--Pennsylvania.", "Festivals--Pennsylvania."; "14256"; .