TY - SER AU - George Klouda AU - Lloyd Currie AU - A. Sheffield C2 - Lewis Publishers, Ann Arbor, MI DA - 1990-06-01 00:06:00 LA - en PB - Lewis Publishers, Ann Arbor, MI PY - 1990 TI - 14C Source Apportionment Technique Applied to Wintertime Urban Aerosols and Gases for the EPA Integrated Air Cancer Project ER -