The mineral industry of Maryland in 1966
By: by E. L. Hemingway
Series: Maryland. Geological Survey. Information circular 6
Publisher: U.S. Govt. Print. Off.
Published: 1967
Place of publication: [Washington
Language: eng
Subjects: Mineral industries -- Maryland
Other titles: Minerals yearbook
Notes: Cover title

Reprinted from Minerals yearbook, 1967