TY  - BOOK
AU  - Spedding, D.J.
AU  - 
TI  - Air pollution
U1  - 54:628.5 
PY  - 1974///
CY  - London
PB  - Oxford University
KW  - Chemical engineering
KW  - Biotechnology
KW  - Chemical technology
N1  -  bib.p.71-72
ER  -