The beginnings of the petroleum industry : sources and bibliography

Ancestry.com. The beginnings of the petroleum industry : sources and bibliography [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: Giddens, Paul Henry,. The beginnings of the petroleum industry : sources and bibliography. Harrisburg: Commonwealth of Pennsylvania, Dept. of Public Instruction, Pennsylvania Historical Commission, 1941.