000
00339nam a2200109Ia 45e0
008
181001s1961 xx 000 0 und d
100
_a
Chapman S.
245
4
_a
The earth magnetism
260
_a
N.Y.
_b
John Willey Inc. N.Y.
_c
1961
300
_a
127
942
_2
ddc
_c
BK
999
_c
515
_d
515