Cita APA (7th ed.)

Bourdon, D. (1980). Calder: Mobilist, ringmaster, innovator. Macmillan.

Cita Chicago (17th ed.)

Bourdon, David. Calder: Mobilist, Ringmaster, Innovator. New York: Macmillan, 1980.

Cita MLA (9th ed.)

Bourdon, David. Calder: Mobilist, Ringmaster, Innovator. Macmillan, 1980.