please change the text to be cohesive:
Geology and the Mineral Resources of the Lehighton and Palmerton Quardrangles, Carbon and Northampton Counties, Pennsylvania. The Pennsylvania Geologic Survey, Harrisburg, Pennsylvania.
Geology and the Mineral Resources of the Lehighton and Palmerton Quardrangles, Carbon and Northampton Counties, Pennsylvania. The Pennsylvania Geologic Survey, Harrisburg, PA.