Cita APA (7a ed.)

Madariaga, S. d. (1938). The world's design. George Allen & Unwin.

Cita Chicago Style (17a ed.)

Madariaga, Salvador de. The World's Design. London: George Allen & Unwin, 1938.

Cita MLA (9a ed.)

Madariaga, Salvador de. The World's Design. George Allen & Unwin, 1938.