Publications of Naval Observatory, 2d series. V. 24, pt. 1. [Third catalog of trigonometric parallaxes of faint stars; by R. S. Harrington, C. C. Dahn, A. L. Behall, J. B. Priser, J. W. Christy, B. Y. Riepe, H. D. Abies, H. H. Guetter, A. V. Hewitt, and R. L. Walker].

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