Scientific American Magazine & Osterbrock, D. E. (1990). STARS and galaxies: Citizens of the universe : readings from Scientific American magazine. W. H. Feeman.
Cita Chicago Style (17a ed.)Scientific American Magazine y Donald E. Osterbrock. STARS and Galaxies: Citizens of the Universe : Readings from Scientific American Magazine. New York: W. H. Feeman, 1990.
Cita MLA (8a ed.)Scientific American Magazine y Donald E. Osterbrock. STARS and Galaxies: Citizens of the Universe : Readings from Scientific American Magazine. W. H. Feeman, 1990.
Precaución: Estas citas no son 100% exactas.