TY  - BOOK
AU  - MORAN, Joseph M.
AU  - MORGAN, Michael D. 
AU  - WIERSMA, James H.
TI  - Introduction to Environmental Science 
SN  - 0-7167-1020-X
PY  - 1980///
CY  - San Francisco 
PB  - W. H. Freeman and Company
KW  - ECOLOGIA
KW  - MEDIO AMBIENTE
ER  -