共 13 条
- [1] BAIN JE, 1949, AM ECON REV, P448
- [2] BAIN JS, 1956, BARRIERS NEW COMPETI, P45
- [3] BAIN JS, 1956, BARRIERS NEW COMPETI, pCH3
- [4] BRESE WG, 1962, ANALYSIS SULPHUR IND, P45
- [5] *FED TRAD COMM, RAT RET TAX ID CO SE
- [6] *FED TRAD COMM, 1947, REP SULPH IND INT CA, P20
- [7] *MOOD INV SERV, MOOD IND MAN
- [8] NETZEBAND FF, 1963, AREA REPORTS, V3, P1015
- [9] NORTH OS, 1953, MINERALS YB, V1, P255
- [10] SAVING TR, 1961, Q J EC NOV, P569