TY  - BOOK
AU  - Claire Jones
AU  - Steve J. Gadler,
AU  - Paul H. Engstrom,
TI  - Pollution: the balance of nature 
U1  - 574.5 
PY  - 1972///
CY  - London
PB  - J. M. Dent
KW  - Biology
KW  - Juvenile literature
N1  - Glossary : p. 101-102; Includes index
ER  -