Echoes of the past
Subtitle: pathways to the future
Contributors: United States. National Park Service
Publisher: Heritage Preservation Commission, America's Industrial Heritage Project
Published: 1987
Place of publication: Cresson, Pa
Language: eng
Subjects: Historic sites; Conservation and restoration; Industrial archaeology; Industries; History
Notes: "Prepared by the National Park Service in cooperation with the Heritage Preservation Commission."--Flap of p. [4] of cover.

"March 1987"--Flap of p. [4] of cover.

"NPS D-16"--Flap of p. [4] of cover.

Map on p..3 of cover and its folded extension.