Author: Ping, Russell G. - Yale University Library GeoBlacklight Search Results

1977. 2012-06-06T14:00:17Z. 2012-06-13T15:04:47Z. Ping, Russell G. U.S. Geological Survey. English. Public. Kentucky and Leslie County.

1978. 2012-06-20T13:39:04Z. 2012-06-29T20:46:12Z. Ping, Russell G. U.S. Geological Survey. English. Public. Kentucky and Knox County.

1978. 2012-06-20T13:35:01Z. 2012-06-29T20:46:11Z. Ping, Russell G. U.S. Geological Survey. English. Public. Kentucky, Clay County, and Knox County.

Search