TY  - BOOK
AU  - Ray,Bill T.
TI  - Environmental engineering
SN  - 0534206522 (acidfree paper)
AV  - TD146 .R38 1995
U1  - 628 20
PY  - 1995///
CY  - New York
PB  - PWS Pub. Co.
KW  - Environmental engineering
KW  - Environmental sciences
N1  - Includes bibliographical references and index
ER  -