Columbia subject headings:
Gardens--Australia--Designs and plans.
Landscape design--Australia.
Landscape gardening--Australia.
Walling, Edna, 1895-1973.
Harvard subject headings:
Gardens--Australia--Designs and plans.
Landscape design--Australia.
Landscape gardening--Australia.
Walling, Edna, 1896-
Princeton subject headings:
Gardens--Australia--Designs and plans.
Landscape architects--Australia.
Landscape design--Australia.
Landscape gardening--Australia.
Walling, Edna, 1895-1973.