Wikisource

Page:Charles R. Fettke - Oil Resources in Coal and Carbonaceous Shales of Pennsylvania (1924).pdf/1

This page does not need to be proofread.


Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Charles_R._Fettke_-_Oil_Resources_in_Coal_and_Carbonaceous_Shales_of_Pennsylvania_(1924).pdf/1&oldid=10477772"