Hitchcock, H. (1958). Architecture: 19th and 20th centuries. Penguin books.
Citazione stile Chigago Style (17a edizione)Hitchcock, Henry-Russell. Architecture: 19th and 20th Centuries. Middlesex: Penguin books, 1958.
Citatione MLA (9a ed.)Hitchcock, Henry-Russell. Architecture: 19th and 20th Centuries. Penguin books, 1958.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.