Não informado. (1966). Bulletin of the Astronomical Institutes of the Netherlands. Astronomical Institutes of the Netherlands.
Citace podle Chicago (17th ed.)Não informado. Bulletin of the Astronomical Institutes of the Netherlands. Amsterdam: Astronomical Institutes of the Netherlands, 1966.
Citace podle MLA (8th ed.)Não informado. Bulletin of the Astronomical Institutes of the Netherlands. Astronomical Institutes of the Netherlands, 1966.
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