Cita APA (7a ed.)

PLOWDEN, D. (1984). Bridges: The spans of North America. Norton Company.

Cita Chicago Style (17a ed.)

PLOWDEN, David. Bridges: The Spans of North America. Norton Company, 1984.

Cita MLA (8a ed.)

PLOWDEN, David. Bridges: The Spans of North America. Norton Company, 1984.