Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'U.S. Goverment Printing Offece', amser ymholiad: 0.02e Mireinio'r Canlyniadau
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    The Astronomical almanak for the year 2000: data forastronomy, apace sciences, geodesy, suveying, ....

    The Astronomical almanak for the year 2000: data forastronomy, apace sciences, geodesy, suveying, .... gan THE ASTRONOMICAL ....

    Cyhoeddwyd 1999
    “...U.S. Goverment Printing Offece...”
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    Ychwanegu at ffefrynnau
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