Geographical exploration and mapping in the 19th century
Subtitle: a survey of the records in the National Archives
Contributors: Ehrenberg, Ralph E.
Series: Its  Reference information paper; no. 66
Publisher: National Archives and Records Service, General Services Administration
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 22
Subjects: Surveying -- History -- United States -- Sources; Cartography -- United States -- History -- Sources