TY  - BOOK
AU  - Tresselt,Alvin
AU  - Duvoisin,Roger
TI  - The beaver pond,
AV  - PZ10.T69 Be
U1  - EZ 599.3 T799 1970 
PY  - 1970///
CY  - New York
PB  - Lothrop, Lee & Shepard
KW  - Beavers
KW  - Juvenile literature
KW  - Pond ecology
N2  - The beavers dam a stream and create a pond which is valuable to many creatures
ER  -