共 7 条
- [1] BABCOCK FL, 1941, US COLL GRADUATE
- [2] DAVIDSON PE, 1937, OCCUPATIONAL MOBILIT, P48
- [3] Hoy William, 1942, CHINESE 6 CO
- [4] SOROKIN P, 1927, SOCIAL MOBILITY, P414
- [5] STEWART FA, TIME MAGAZINE
- [6] TAUSSIG FW, 1932, AM BUSINESS LEADERS, P135
- [7] *US BUR CENS, 1943, 16 CENS US 1940 POP, P47