TY  - BOOK
AU  - Enger, Eldon D.
AU  - Enger, Eldon D.
TI  - Environment science: a study of relationships
SN  - 07 230495 2
U1  - 628 E31 2000 7th ed.
PY  - 2000///
CY  - Boston
PB  - Mc Graw-Hill
ER  -