Oil and gas geology of the Youngsville quadrangle, Pennsylvania, by William G. McGlade.
- Harrisburg, 1964.
iv, 56 p. illus., maps, 7 fold. col. plates (in pocket, incl. 2 maps) 26 cm.
- Pennsylvania. Bureau of Topographic and Geologic Survey. Bulletin M53.
Pennsylvania Topographic and Geologic Survey. Mineral resources report M53