Goldwater, D. L. (1965). Bridges and how they are built. Young scott books.
Cita Chicago Style (17a ed.)Goldwater, Daniel Leon. Bridges and How They Are Built. New York: Young scott books, 1965.
Cita MLA (9a ed.)Goldwater, Daniel Leon. Bridges and How They Are Built. Young scott books, 1965.
Precaución: Estas citas no son 100% exactas.