RYDEN, Barbara Sue, 2014. Introduction to cosmology. First edition, Pearson new international edition. Harlow: Pearson. ISBN 129203971 X.
Elsevier - Harvard (with titles)Ryden, B.S., 2014. Introduction to cosmology, First edition, Pearson new international edition. ed, Always learning. Pearson, Harlow.
American Psychological Association 7th editionRyden, B. S. (ca. 2014). Introduction to cosmology [Book]. In Always learning (First edition, Pearson new international edition). Pearson.
Springer - Basic (author-date)Ryden BS (2014) Introduction to cosmology, First edition, Pearson new international edition. Pearson, Harlow
Juristische Zitierweise (Stüber) (Deutsch)Ryden, Barbara Sue, Introduction to cosmology, First edition, Pearson new international edition , Harlow 2014.
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