000
00235nam a2200109Ia 4500
008
160710s1939 xx 000 0 und d
100
_a
KEOWN,R.M
245
_a
MECHANISM
260
_b
MCGRAW HILL
_c
1939
300
_a
282
942
_2
ddc
_c
B
999
_c
6761
_d
6761