Ashburner, C. A. 1. (1884). Sketch of the geology of Carbon County, Pennsylvania. [S.l.].
Chicago Style CitationAshburner, Charles A. 1854-1889. Sketch of the Geology of Carbon County, Pennsylvania. [S.l.], 1884.
MLA CitationAshburner, Charles A. 1854-1889. Sketch of the Geology of Carbon County, Pennsylvania. [S.l.], 1884.
Warning: These citations may not always be 100% accurate.