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|Material Type:||Government publication, State or province government publication|
|All Authors / Contributors:||
Don J Easterbrook; Susan L Marsh; Western Washington University.; United States. National Park Service.
|Notes:||"Prepared under contract with the National Park Service."
|Description:||401 leaves,  leaves of plates : ill. ; 28 cm.|
|Responsibility:||by Don J. Easterbrook and Susan L. Marsh.|