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<br />Precipitation ?requency J.;ap~; for Colorado, Prepared by the Special Study <br /> <br />!ranch,Office of HydroloGY ,ES3A->ieother fronch for Ebgineerinc Div. <br /> <br />Soil Conservation Servi()e,U.S.Dept of A[;!'iculture,U.S.Dept of Co=erce <br /> <br />~ashinGton ~.C.,October.l967 <br />