Citazione Stile APA (7a Edizione)

Penn, I. (1980). Flowers: Photogr. by Irving Penn. Harmony Books.

Citazione stile Chigago Style (17a edizione)

Penn, Irving. Flowers: Photogr. by Irving Penn. New York, NY: Harmony Books, 1980.

Citatione MLA (8a ed.)

Penn, Irving. Flowers: Photogr. by Irving Penn. Harmony Books, 1980.