Cita APA (7a ed.)

Steinberg, S. H., & Warde, B. (1974). Five hundred years of printing (3rd ed.). Penguin Books.

Cita Chicago Style (17a ed.)

Steinberg, Sigfrid Heinrich, y Beatrice Warde. Five Hundred Years of Printing. 3rd ed. Harmondsworth: Penguin Books, 1974.

Cita MLA (9a ed.)

Steinberg, Sigfrid Heinrich, y Beatrice Warde. Five Hundred Years of Printing. 3rd ed. Penguin Books, 1974.