Cita APA (7a ed.)

Hoffmann, G. (1977). Doors: Excellence in international design. Godwin.

Cita Chicago Style (17a ed.)

Hoffmann, Gretl. Doors: Excellence in International Design. London: Godwin, 1977.

Cita MLA (9a ed.)

Hoffmann, Gretl. Doors: Excellence in International Design. Godwin, 1977.