Armitge, Angus
The World of copernicus (original title: Sun, stand thou still) / Angus Armitage
The New American Library, 1956
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Armitage, Angus
The world of Copernicus: sun, stand thou still / Angus Armitage
Mentor Books, 1952
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Arny, Thomas T., author
Explorations : an introduction to astronomy / Thomas T. Arny
McGraw-Hill, Higher Education, 2004
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Hodge, Paul W.
Concepts of contemporary astronomy / Paul W. Hodge
McGraw-Hill, 1974
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Hartman, William K., author
Astronomy : the cosmic journey
Wadswoth, 1978
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