Yeomans, P.A.
The challenge of landscape: the development and practiceof keyline/ P.A. Yeomans - Sydney: Keyline Publishing, 1958 - 271p.: ill.
Soil conservation--Australia
Soil fertility--Australia
The challenge of landscape: the development and practiceof keyline/ P.A. Yeomans - Sydney: Keyline Publishing, 1958 - 271p.: ill.
Soil conservation--Australia
Soil fertility--Australia