000
00292nam a2200121Ia 4500
008
220201s1950 xx 000 0 eng d
082
_b
KEY
100
_a
Keyes, K.
245
0
_a
How to develop your thinking ability
260
_a
New York
_b
Mc Graw Hill
_c
1950
300
_a
246
942
_2
ddc
999
_c
18048
_d
18048