Cita APA (7th ed.)

Bell, S. (1993). Elements of visual design in the landscape. Spon Press.

Cita Chicago (17th ed.)

Bell, Simon. Elements of Visual Design in the Landscape. London: Spon Press, 1993.

Cita MLA (9th ed.)

Bell, Simon. Elements of Visual Design in the Landscape. Spon Press, 1993.