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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.
| Corporate Author: | |
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| Format: | Online Video |
| Language: | English |
| Published: |
Derry, NH :
Chip Taylor Communications,
2011.
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| Subjects: | |
| Access: | Online version |
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