Cite
. “ Moon at Age of Seventeen Days. Copyright Yerkes Observatory.” Lowcountry Digital Library, College of Charleston Libraries, 1890-1899 1900-1909 1910-1919.
. “ Moon at Age of Seventeen Days. Copyright Yerkes Observatory.” Lowcountry Digital Library, College of Charleston Libraries, 1890-1899 1900-1909 1910-1919.