TY  - GEN
AU  - Dugger, Mack
TI  - Air Pollution effects on plant growth ; Proceedings of the symposium sponsored by the division of agriculture and food Chemistry
T2  -  No. 3
SN  - 0841202230
U1  - 581.522 2 DUG 
CY  - Washington, American Chemical society
KW  - Air pollution congresses / Plant disease congresses
ER  -