Trotter, F. M. (1942). Geology of the Forest of Dean coal and iron-ore field. H.M.S.O..
芝加哥风格引文Trotter, F. M. Geology of the Forest of Dean Coal and Iron-ore Field. London: H.M.S.O., 1942.
MLA引文Trotter, F. M. Geology of the Forest of Dean Coal and Iron-ore Field. H.M.S.O., 1942.
警告：这些引文格式不一定是100％准确.