The absence of very long waves from the sun's spectrum
著者
書誌事項
The absence of very long waves from the sun's spectrum
（Contributions from the solar observatory, Mt. Wilson, California, no.19）
[Carnegie Institution of Washington], [1907?]
The absence of very long waves from the sun's spectrum
（Contributions from the solar observatory, Mt. Wilson, California, no.19）
[Carnegie Institution of Washington], [1907?]