APA Citation

Ashburner, C. A. 1. (1884). Sketch of the geology of Carbon County, Pennsylvania. [S.l.].

Chicago Style Citation

Ashburner, Charles A. 1854-1889. Sketch of the Geology of Carbon County, Pennsylvania. [S.l.], 1884.

MLA Citation

Ashburner, Charles A. 1854-1889. Sketch of the Geology of Carbon County, Pennsylvania. [S.l.], 1884.

Warning: These citations may not always be 100% accurate.