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- Language: English
- Year: 1964

Tables of median hourly values of the cosine of the solar zenith angle (x) for thirty-five locations
pdf
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- Language: English
- Year: 1959

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- Year: 1972

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- Year: 1970

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- Year: 1978

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- Year: 1957

Atomic Energy Levels
djvu
- Author: Charlotte E. Moore
- Language: English
- Year: 1949

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- Year: 1987