Ryden, B. S. (2014). Introduction to cosmology (Pearson new international edition.). Pearson.
芝加哥风格引文Ryden, Barbara Sue. Introduction to Cosmology. Pearson new international edition. Harlow: Pearson, 2014.
MLA引文Ryden, Barbara Sue. Introduction to Cosmology. Pearson new international edition. Pearson, 2014.
警告：这些引文格式不一定是100％准确.