LEADER 00000cz  a2200145n  4500 
001    138839 
005    19951204000000.0 
008    900820n| acannaab|          |a ana       
010    n  90683791 
035    N  90683791 
040    DLC|cDLC|dDLC 
110 20 National Center for Improving Science Education (U.S.) 
410 20 Network, Inc.|bNational Center for Improving Science 
       Education (U.S.) 
670    Elementary school science for the '90s, c1990:|bCIP t.p. 
       (National Center for Improving Science Education) 
670    Examining the examinations, 1996:|bCIP t.p. (National 
       Center for Improving Science Education a division of The 
       Network, Inc.)