Man and air - threats to prairie survival
Hanson, George P.
Article
1970
Lasca leaves
20
78-81, 92
Air -- Pollution -- California , Plants -- Effect of photochemical smog on
The Arboretum Library at the Los Angeles County Arboretum & Botanic Garden
English
Arcadia, Calif, California Arboretum Foundation, 1950-1976