COLORADO. TAXATION . SALES TAX 1984 Colo. Water Convention reoonmends sales tax increase to fund state water projects. IM D 2, 1984 p.8 Colorado's mountian ski resorts report sales tax gains. RMN Ap 5, 1986 p.60 Bill proposed to tax mail-order goods. RM Ap 1, 1987 p.18 Waning sales tax receipts porterrl cutbacks. IM Ja 18, 1987 p.6 Tax collectors worry over increasing catalog sales. RM D 3, 1987 p.26 0