APA (7th ed.) Citation

Calvino, I. (1999). Why read the classics? (1st American ed.). Pantheon Books.

Chicago Style (17th ed.) Citation

Calvino, Italo. Why Read the Classics? 1st American ed. New York: Pantheon Books, 1999.

MLA (9th ed.) Citation

Calvino, Italo. Why Read the Classics? 1st American ed. Pantheon Books, 1999.