Results of observations made with the seven-inch transit circle, 1967-1973 : observations of the moon and minor planets, catalog of 23,001 stars for 1950.0, comparisons with FK4
Results of observations made with the seven-inch transit circle, 1967-1973 : observations of the moon and minor planets, catalog of 23,001 stars for 1950.0, comparisons with FK4 / by J.A. Hughes, C.A. Smith, and R.L. Branham.