Osterbrock, D. E. (1997). Yerkes Observatory, 1892-1950: The birth, near death, and resurrection of a scientific research institution. University of Chicago Press.
Chicago-Zitierstil (17. Ausg.)Osterbrock, Donald E. Yerkes Observatory, 1892-1950: The Birth, Near Death, and Resurrection of a Scientific Research Institution. Chicago: University of Chicago Press, 1997.
MLA-Zitierstil (9. Ausg.)Osterbrock, Donald E. Yerkes Observatory, 1892-1950: The Birth, Near Death, and Resurrection of a Scientific Research Institution. University of Chicago Press, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.