000
00311nam a2200121Ia 4500
008
170101s1961 xx 000 0 und d
082
_a
651.26 S18P
100
_a
SCHECLE, Martin
245
0
_a
Punch cards methods in research and documentation
260
_b
Ludhiana
_c
1961
300
_a
xiv,274p
942
_2
ddc
_c
B
999
_c
9415
_d
9415