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dc.creatorUnited States Department of the Interior Geological Survey
dc.date.accessioned2015-09-21T19:57:05Z
dc.date.available2015-09-21T19:57:05Z
dc.date.issued1973
dc.identifier.urihttp://hdl.handle.net/2346/64013
dc.format.extent17 p.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherWashington: Government Printing Office
dc.subjectGeological Survey (U.S.)
dc.subjectTree-rings
dc.titleTree rings: timekeepers of the past
dc.typeBook
dc.rights.availabilityUnrestricted.


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