APA aipamena

Ryden, B. S. (2014). Introduction to cosmology (Pearson new international edition.). Pearson.

Chicago Style aipamena

Ryden, Barbara Sue. Introduction to Cosmology. Pearson new international edition. Harlow: Pearson, 2014.

MLA aipamena

Ryden, Barbara Sue. Introduction to Cosmology. Pearson new international edition. Pearson, 2014.

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