TY  - BOOK
AU  - WHITE,I.D.
AU  - MOTTERSHEAD,D.N.
AU  - HARRISON,S.J.
TI  - ENVIRONMENTAL SYSTEMS: AN INTRODUCTORY TEXT / 
U1  - 620.8 
PY  - 1993///
CY  - [S.N] : 
PB  - CHAPMAN & HALL ، 
KW  - ENVIRONMENT
ER  -