TY  - BOOK
AU  - DUGGER, Mack
TI  - Air pollution effects on plant growth
U1  - 582.052 22 D86A 
PY  - 1974///
PB  - Washington
KW  - PLANTS, EFFECTS OF AIR POLLUTION -- CONGRESSES
KW  - PLANTS, EFFECTS OF AIR POLLUTION -- CONGRE
ER  -