AU  - BRYANT,NAPOLEON
AU  - FRANK,MARJORIE
AU  - KROCKOVER,GERALD
AU  - VALENTA,CAROL
AU  - DEMAN,BARRY
TI  - SCIENCE ANYTIME: UNIT D, LAKES, PONDS, RIVERS AND STREAMS, GRADE 3
T2  - SCIENCE ANYTIME
SN  - 0153061545
U1  - 500/BRY 
PY  - 1995///
CY  - USA
PB  - HARCOURT BRACE AND COMPANY
KW  - SCIENCE
KW  - EDUCATION
KW  - PONDS
KW  - CHANGES IN FRESHWATER ECOSYSTEMS
KW  - PEOPLE EFFECT ON THE ENVIRONMENT
ER  -