Slocum, F 1873 1944 books & textbook
Stellar parallaxes derived from photographs made with the forty-inch refractor
Observatory, Yerkes Slocum, F 1873-1944 Mitchell, S A. 1874-1960 Lee, Oliver Justin Joy, Alfred Harrison Van Biesbroeck, George Pettit, Hannah Bard Steele
Ulan Press /2012-08-31 Paperback / 86 Pages
