The mineral industry of Pennsylvania in 1978 and 1979 / William Kebblish.

Chicago citation style
Kebblish, William. The mineral industry of Pennsylvania in 1978 and 1979 / William Kebblish.. Retrieved from the Digital Public Library of America, https://archive.org/details/mineralindustryo00kebb_3. (Accessed December 10, 2018.)
APA citation style
Kebblish, William, The mineral industry of Pennsylvania in 1978 and 1979 / William Kebblish.. Retrieved from the Digital Public Library of America, https://archive.org/details/mineralindustryo00kebb_3
MLA citation style
Kebblish, William. Retrieved from the Digital Public Library of America <https://archive.org/details/mineralindustryo00kebb_3>.
Note: These citations are programmatically generated and may be incomplete.