000
00253pam a2200109a 44500
082
_a
530.4
_b
M18PE5
100
_a
Mach, Ernst
245
1
_a
POPULAR SCIENTIFIC LECTURE
260
_a
_b
Business Guides Company
_c
1965
964
_g
CIRC
997
_a
58881 C
999
_c
410119
_d
410119