Παραπομπή APA

Steinman, D. B. (1957). Bridges and their builders. New York: Dover Publications.

Παραπομπή Chicago Style

Steinman, David Barnard. Bridges and Their Builders. New York: Dover Publications, 1957.

Παραπομπή MLA

Steinman, David Barnard. Bridges and Their Builders. New York: Dover Publications, 1957.

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