000
00226nam a22000977a 4500
082
_a
K.301.44
100
_a
SOROKIN A PITIRIM
_9
95630
245
_a
SOCIAL AND CULTURAL MOBILITY
_c
PITIRIM A SOROKIN
300
_a
645
942
_c
BK
999
_c
144962
_d
144962