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521 |
The meaning of relativity Einstein, Albert. - Princeton, New Jersey : Princeton Univ. Pr., 1950, 3. ed., including the Generalized theory of gravitation
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522 |
The universe and Dr. Einstein Barnett, Lincoln Kinnear. - New York : Sloane, [1950]
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523 |
Albert Einstein Ulm : Stadtverwaltung, 1949
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524 |
Albert Einstein Evanston, Ill. : Library of Living Philosophers, 1949
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525 |
Modern geometry and the theory of relativity Menger, Karl. - [Evanston, Ill.] : Library of Living Philosophers, 1949
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526 |
New evidence of the militarization of America Washington, DC : The National Council Against Conscription, 1949
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527 |
The language of wisdom and folly New York, NY : Harper, c 1949
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528 |
The musical digest / 9. (1949)
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529 |
The universe and Dr. Einstein Barnett, Lincoln Kinnear. - London : Gollancz, 1949
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530 |
The world as I see it Einstein, Albert. - London : Watts, 1949, 3. impr.
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