GRIGG, D.B.
The Agricultural systems of the world: an evolutionary approach / [by] D.B.Grigg - London Cambridge University Press 1974 - ix, 358 p.
Includes appendix, bibliography and index.
521098432
Agriculture-Economic aspects
338.1 / GRI
The Agricultural systems of the world: an evolutionary approach / [by] D.B.Grigg - London Cambridge University Press 1974 - ix, 358 p.
Includes appendix, bibliography and index.
521098432
Agriculture-Economic aspects
338.1 / GRI