Twitchell, M. W. (Mayville William), b. 1868. The mineral industry of New Jersey for 1913 / by M.W. Twitchell.

Twitchell, M. W. (Mayville William), b. 1868.

The mineral industry of New Jersey for 1913 / by M.W. Twitchell.

Trenton : Geological Survey of New Jersey, 1914 (Union Hill, N.J. : Dispatch Printing Co.)

Mineral industries -- New Jersey.

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