[...] the agriculture teacher must possess a variety of knowledge, skills, and expertise. With free labor and a military dominance, the Romans built the first interstate system with segmental pavement over 2,000 years ago. [...] practically every culture continues to use segmental pavements.
Revitalize Your Agricultural Education, Horticulture, or Supervised Agricultu... Shawn W Abma; Connie D Baggett The Agricultural Education Magazine; Jul/Aug 2010; 83, 1; Docstoc pg. 19 Repro
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"Revitalize Your Agricultural Education, Horticulture, or Supervised Agricultural Experience Programs by Using Concrete Pavers to Teach Patio Designs"Please download to view full document