Copper, zinc, lead, iron, cobalt, and barite deposits in the Piedmont Upland of Maryland
By: by Allen V. Heyl and Nancy C. Pearre.
Contributors: Pearre, Nancy C., joint author.
Publisher: Maryland Geological Survey
Published: 1965
Place of publication: Baltimore
Language: eng
Number of pages: 72
Subjects: Mines and mineral resources -- Maryland.
Notes: Bibliography: p. 66-68.