Cita APA (7a ed.)

Hitchcock, H. (1968). Architecture: Nineteenth and twentieth centuries (3rd ed.). Penguin.

Cita Chicago Style (17a ed.)

Hitchcock, Henry-Russell. Architecture: Nineteenth and Twentieth Centuries. 3rd ed. Harmondsworth: Penguin, 1968.

Cita MLA (9a ed.)

Hitchcock, Henry-Russell. Architecture: Nineteenth and Twentieth Centuries. 3rd ed. Penguin, 1968.