William S. Lytle

• A summary of oil and gas developments in Pennsylvania, 1955 to 1959
• A summary of oil and gas developments in Pennsylvania, 1955 to 1959 / by William S. Lytle ... [et al.].
• Crude oil reserves of Pennsylvania
• History, present status and future possibilities of secondary recovery operations in Pennsylvania
• Oil and gas developments in Pennsylvania in 1963 / by William S. Lytle ... [et al.].
• Oil and gas developments in Pennsylvania in 1964 / by William S. Lytle, William G. McGlade and Walter R. Wagner.
• Oil and gas developments in Pennsylvania in 1965 / William S. Lytle ... [et al.].
• Oil and gas developments in Pennsylvania in 1966 / by William S. Lytle, Louis Heyman and Walter R. Wagner
• Oil and gas developments in Pennsylvania in 1967 / by William S. Lytle, Louis Heyman, and Walter R. Wagner
• Oil and gas developments in Pennsylvania in 1970
• Oil and gas developments in Pennsylvania in 1970 / by William S. Lytle, Louis Heyman [and] Dana R. Kelley
• Oil and gas developments in Pennsylvania in 1971 / by William S. Lytle, Louis Heyman.