Educational opportunities for botanical gardens and arboretums
Watson, Donald P.
Article
1962
Lasca leaves
12
5-7
Horticulture -- Adult education , Horticulture -- Study and teaching
The Arboretum Library at the Los Angeles County Arboretum and Botanic Garden
English
Arcadia, Calif, California Arboretum Foundation, 1950-1976
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