ABC of Communication Studies

Catalogue of 1680 Stars for the Equinox 1900-0 from Observations Made at the Royal Observatory, Cape of Good Hope, During the Years 1905-1906 (Classic Reprint)

Catalogue of 1680 Stars for the Equinox 1900'0: From Observation Made at the Royal Observatory, Cape of Good Hope, During the Years 1905-1906 (Classic Reprint)

Catalogue of 2798 Zodiacal Stars for the Epoch 1900, Arranged for Differential Observations of the Planets in Accordance with Resolution 9 of the Conference Internationale Des ?toiles Fondamentales, Held in Paris in 1896 (Classic Reprint)

A Catalogue of 8560 Astrographic Standard Stars Between Declinations -40 and -52 for the Equinox 1900 from Observations Made at the Royal Observatory, Cape of Good Hope, During the Years 1896-99: With Appendices: Comparison with Other Catalogues and Deriv