Conservation of natural resources
By: the National Survey of Historic Sites and Buildings
Contributors: United States. National Park Service
Publisher: U.S. Dept. of the Interior, National Park Service
Published: 1963
Place of publication: Washington]
Language: eng
Number of pages: 248
Subjects: Nature conservation; History; National parks and reserves; Landscape protection
Other titles: National survey of historic sites and buildings. Theme XIX
Notes: Includes bibliographical references.