000
00317nam a2200133Ia 4500
008
230108s9999 xx 000 0 und d
100
_a
Walker EL
245
0
_a
Conditioning and Instrumental learning
260
_b
Prentice-Hall of India
260
_c
1969
365
_b
0.00
650
_a
Extension
942
_c
BK
999
_c
243853
_d
243853