Program: HathiTrust Digital Library

  • Publisher: National Park Service. [For sale by the Supt. of Docs., U.S. Govt. Print. Off.]
  • Print ISSN: 0550-4422
  • Electronic ISSN:
  • OCLC Number: 216566943
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1969
committed to retain 2018-05-04 HTDL