Giedion, S. 1. (1962). The eternal present: A contribution on constancy and change. New York: Bollingen Foundation ; distributed by Pantheon Books.
استشهاد بنمط شيكاغوGiedion, S. 1888-1968. The Eternal Present: A Contribution On Constancy and Change. New York: Bollingen Foundation ; distributed by Pantheon Books, 1962.
MLA استشهادGiedion, S. 1888-1968. The Eternal Present: A Contribution On Constancy and Change. New York: Bollingen Foundation ; distributed by Pantheon Books, 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.