TY  - BOOK
AU  - Sellars, Richard West
TI  - Preserving nature in the national parks: a history 
SN  - 0300069316
U1  - 333.70973 SEL 
PY  - 1997///
CY  - New Haven
PB  - Yale University Press
KW  - National Parks and reserves
KW  - United States
KW  - Management
KW  - Natural resources
KW  - United States National Park Service
KW  - History
KW  - Nature conservation
N1  - Includes bibliographical references and index
ER  -