The minerals of Pennsylvania: Iron ores of Pennsylvania, by William O. Hickok, IV.
Material type:
TextSeries: Bulletin M ; 18-BPublication details: Harrisburg, Pa., Department of Internal Affairs, Topographic and Geologic Survey, 1939.Description: 21 p. incl. tables. 23 cmSubject(s): LOC classification: - TN24.P4 A7
At head of title: Pennsylvania Geological survey, Fourth series
With Ashley, G. H. The undeveloped mineral resources of Pennsylvania. 1933. (Bulletin M18-A)
Bibliographical footnotes.
There are no comments on this title.