19449.10-1997.9 1949.10-1997.9 1949.10—1997.9 1949.10-1997.7 1949.10-1993.7 1976.10-1997.9 19449.10-1966.5 1949.10-1999.6 1994.1-1997.9 1949.10-1993.6