共 11 条
[2]
BECKER HS, 1956, AM SOCIOL REV, V21, P289
[3]
BROZEK J, 1961, AM I BIOLOGICAL SCIE, V11, P10
[5]
BUCHER R, 1961, THESIS U CHICAGO
[6]
DAVIDSOHN I, 1953, AM J CLIN PATHOL, V23, P1
[8]
GOODE WJ, 1960, AM SOCIOL REV, V25, P902
[9]
Lortie D, 1949, THESIS U CHICAGO