TY  - BOOK
AU  - Dara,S.S.
TI  - A textbook of engineering chemistry
SN  - 8121903599
U1  - 577.14 22
PY  - 1986///
CY  - New delhi
PB  - S. Chand
KW  - Environmental chemistry
N1  - Includes bibliographical and index
ER  -