TY  - BOOK
AU  - European Congress on the Influence of Air Pollution on Plants and Animals, Wageningen, Apr.22-27, 1968.
TI  - Air pollution; proceedings
U1  - 628.5:577.48 1968.4.22/29 (082.2) K9 
PY  - 1969///
CY  - Wageningen
PB  - Centre for Agricultural Publishing and Documentation
KW  - Air Pollution-Congresses
ER  -