TY  - BOOK
AU  - Enger, Eldon D.
AU  - Smith, Branley F.
TI  - Enviromental Science:  a study of interrelationship 
SN  - 007230495 2
U1  - 304.28 
PY  - 2000///
CY  - London
PB  - McGraw Hill
KW  - Enviromental projection engineering -
ER  -