APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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