John A. Harper

Identifiers

Open LibraryOL868777A

Top Subjects

Pennsylvania (5)
Petroleum (4)
Natural gas (4)
Economic Conditions (1)
Business / Economics / Finance (1)
Petroleum -- Geology -- Pennsylvania (1)
Natural gas -- Geology -- Pennsylvania (1)

Books by John A. Harper

Total count: 9

Oil and gas developments in Pennsylvania in 1983 (Progress report)

Pennsylvania Bureau of Topographic and Geologic Survey1984-01-01
Oil and gas developments in Pennsylvania in 1984 (Progress report)

Pennsylvania Bureau of Topographic and Geologic Survey1985-01-01
Oil & Gas Developments in Pennsylvania in 1985 (Progress Report

Commonwealth of Pennsylvania, Department of G1986-12-01
Geology of the oil and gas fields of southwestern Pennsylvania

May be purchased from State Book Store1987-01-01
Oil and gas developments in Pennsylvania in 1987 (Progress report)

Pennsylvania Bureau of Topographic and Geologic Survey1988-01-01
Oil & Gas Developments in Pennsylvania in 1988

PA Dept. of Environmenta Resources1989-12-01
Oil and gas developments in Pennsylvania in 1989 (Progress report)

Pennsylvania Bureau of Topographic and Geologic Survey1990-01-01
Paddles!The Foibles and Finesse of One World War II Landing Signal Officer

Schiffer Publishing2000-01-01
Mobilize!Reassembling Forces with the World in Chaos

AuthorHouse2010-11-18