Παραπομπή σε μορφή APA (7η εκδ.)

Spadley, J. L. (1994). Visions that shaped the universe: A history of scientific ideas about the universe. McGraw-hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spadley, Joseph L. Visions That Shaped the Universe: A History of Scientific Ideas About the Universe. New York: McGraw-hill, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spadley, Joseph L. Visions That Shaped the Universe: A History of Scientific Ideas About the Universe. McGraw-hill, 1994.