Trotter, F. M. (1942). Geology of the Forest of Dean coal and iron-ore field. H.M.S.O..
Cita Chicago Style (17a ed.)Trotter, F. M. Geology of the Forest of Dean Coal and Iron-ore Field. London: H.M.S.O., 1942.
Cita MLA (8a ed.)Trotter, F. M. Geology of the Forest of Dean Coal and Iron-ore Field. H.M.S.O., 1942.
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