Mode of access: Internet from the USGS web site. Address as of 10/10/08: http://pubs.er.usgs.gov/usgspubs/cir/cir247; current access via PURL.
Note
Title from .djvu (viewed on Oct. 10. 2008).
Bibliography
Includes bibliographical references (page 42).
Access
Use copy Restrictions unspecified star MiAaHDL
Reproduction
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2011. MiAaHDL
System Details
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL
Processing Action
digitized 2011 HathiTrust Digital Library committed to preserve pda MiAaHDL