Citazione Stile APA (7a Edizione)

ASIMOV, I. (1962). The clock we live on.-- New, revised edition. Collier Books.

Citazione stile Chigago Style (17a edizione)

ASIMOV, Isaac. The Clock We Live on.-- New, Revised Edition. New York: Collier Books, 1962.

Citatione MLA (9a ed.)

ASIMOV, Isaac. The Clock We Live on.-- New, Revised Edition. Collier Books, 1962.