Zwet, G. P. v. d. (1958). A spectroscopic study of absorption and emission features of interstellar dust components.
Chicago-viite (17. p.)Zwet, Gerardus Petrus van der. A Spectroscopic Study of Absorption and Emission Features of Interstellar Dust Components. 1958.
MLA-viite (8. p.)Zwet, Gerardus Petrus van der. A Spectroscopic Study of Absorption and Emission Features of Interstellar Dust Components. 1958.
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