Labor. Denver 31 graduate from Colorado Laborers and Contractors Education and Training Program. Post My 15, 1977- p.30 Carpenters join Metro Denver Construction Plan to in- crease minority workers. Post 0 26, 1971 Yellow Cab, Inc may hire non-union drivers. RMN 0 23, 1977 p.30 Cadillac Fairview building 3 months ahead of schedule and $300,000 under estimated cost due to unique coopera- tion between contractors and union tradesmen. Post Ap 23, 1978 p.6E