共 16 条
[1]
[Anonymous], STATISTICAL PACKAGE
[2]
[Anonymous], METROPOLITAN AM CONT
[4]
BEALE CL, 1975, ERS605 ERS USDA EC D
[5]
Blau P. M., 1967, AM OCCUPATIONAL STRU
[6]
Bookchin Murray, 1974, LIMITS CITY
[9]
Fessler DR, 1952, RURAL SOCIOL, V17, P144