In short.
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In short. Episode 1, Bridge construction /

Episode 1 - Bridge Construction: From the earliest days we've been building bridges to make it easier to cross over water, other roads or treacherous terrain. Bridges have evolved from stone constructions to modern monoliths of concrete and steel.

Bibliographic Details
Corporate Author: Academic Video Online
Format: Online Video
Published: Derry, NH : Chip Taylor Communications, 2011.
Access:Online version
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