TY  - BOOK
AU  - Turk,Amos
TI  - Tratado de ecología
AV  - QH541 .E5718 1978
U1  - 301.31 
PY  - 1981///]
CY  - México
PB  - Interamericana
KW  - Ecology
KW  - Environmental protection
KW  - Local
KW  - Pollution
KW  - Environmental sciences
N1  - Translation of : Environmental science; Includes bibliographies and index
ER  -