Citazione Stile APA (7a Edizione)

Wheeler, J. A. (1990). A journey into gravity and spacetime. Scientific American Library.

Citazione stile Chigago Style (17a edizione)

Wheeler, John Archibald. A Journey into Gravity and Spacetime. New York: Scientific American Library, 1990.

Citatione MLA (9a ed.)

Wheeler, John Archibald. A Journey into Gravity and Spacetime. Scientific American Library, 1990.