Cita APA (7th ed.)

Bobrick, B. (1981). Labyrinths of iron, a history of the world's subways. Newsweek Books.

Cita Chicago (17th ed.)

Bobrick, Benson. Labyrinths of Iron, a History of the World's Subways. New York: Newsweek Books, 1981.

Cita MLA (8th ed.)

Bobrick, Benson. Labyrinths of Iron, a History of the World's Subways. Newsweek Books, 1981.