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1 heading found for n 86835984
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Crawford, R. T. (Russell Tracy), 1876-
Crawford, Russel Tracy, 1876-1958 Crawford, Russell Tracy, 1876- Crawford, Russel Tracy (1876-?) Russell Tracy Crawford Crawford, R. T. (Russell Tracy), b. 1876 |
Personal | Determination of orbits of comets and asteroids Determination of orbits of comets and asteroids Determination of orbits of comets and asteroids Determination of the constant of refraction from observations made with the Reps ... Sir Isaac Newton's Mathematical principles of natural philosophy, 1934 |