Ryden, B. (2014). Introduction to cosmology (First edition, Pearson new international edition.). Pearson.
Cita Chicago Style (17a ed.)Ryden, Barbara. Introduction to Cosmology. First edition, Pearson new international edition. Harlow, England: Pearson, 2014.
Cita MLA (8a ed.)Ryden, Barbara. Introduction to Cosmology. First edition, Pearson new international edition. Pearson, 2014.
Precaución: Estas citas no son 100% exactas.