Clarke, G. (1991). Walt Whitman: The poem as private history. Vision Press ; St. Martin's Press.
Citazione stile Chigago Style (17a edizione)Clarke, Graham. Walt Whitman: The Poem as Private History. London : New York: Vision Press ; St. Martin's Press, 1991.
Citatione MLA (8a ed.)Clarke, Graham. Walt Whitman: The Poem as Private History. Vision Press ; St. Martin's Press, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.