The Once and Future Silver Queen of the Rockies: Georgetown, Colorado, and the Fight for Survival into the Twentieth Century. Mining the American West. By Christine A. Bradley and Duane A. Smith.Published in:2020By:Flynt, MettePublication type:Book Review
Denver can upgrade its observatory.Published in:Nature, 1996, v. 383, n. 6601, p. 568Publication type:Article