| Geophysics - 1966 - 824 pages
No. 7 contains data for Jan.-June 1959. | |
| Geophysics - 1965 - 672 pages
No. 7 contains data for Jan.-June 1959. | |
| Geophysics - 1963 - 812 pages
No. 7 contains data for Jan.-June 1959. | |
| Geophysics - 1959 - 734 pages
No. 7 contains data for Jan.-June 1959. | |
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