Chesapeake and Ohio canal, Maryland.
Publisher: U.S. Govt. print. off.
Published: 1942
Place of publication: [Washington
Language: eng
Number of pages: 13
Subjects: Chesapeake and Ohio Canal.
Notes: On verso of t. p.: United States Department of the interior. Harold L. Ickes, secretary. National park service. Newton B. Drury, director.