000
00273cam a2200109 4500
001
0872206270
008
081016t1971 xxu||||| |||| 00| 0 eng d
020
_a
0872206270
100
_a
Skinner, BF
245
0
_a
Beyond freedom and dignity
260
_a
Indianapolis
_b
Hackett
_c
1971
999
_c
53951
_d
53951