USGS - science for a changing world

USGS Online Publications Directory

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[PARENTDIR] Parent Directory - [IMG] coverthb2.jpg 2019-10-23 07:58 33K [   ] ofr20191071.pdf 2019-10-23 08:37 4.6M [TXT] versionhist.txt 2019-10-23 11:23 5.7K

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