Harper's Magazine Foundation. (1976). Harper's. Harper's Magazine Foundation.
Citazione stile Chigago Style (17a edizione)Harper's Magazine Foundation. Harper's. New York: Harper's Magazine Foundation, 1976.
Citatione MLA (9a ed.)Harper's Magazine Foundation. Harper's. Harper's Magazine Foundation, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.