共 38 条
- [1] ARMSTRONG WG, 1864, IND RESOURCES TYNE W, P88
- [2] ASHTON TS, 1924, IRON STEEL IND REVOL, P100
- [3] BELL IL, 1884, MANUFACTURE IRON STE, P454
- [4] BELL IL, 1878, PROGR IRON TRADE CLE, P3
- [5] BENHAM F, 1934, 39 LOND CAMBR EC SER, P39
- [6] BENHAM F, 1934, 39 LOND CAMBR EC SER, P29
- [7] BONE WA, 1936, COAL ITS CONSTITUTIO, pCH26
- [8] BONE WA, 1919, COAL ITS SCI USES, P409
- [9] *BRIT IR STEEL FED, 1927, STAT IR STEEL IND
- [10] BROOKS AH, US GEOLOGICAL SURVEY, V703, P96