The agricultural systems of the world : An evolutionary approach
Grigg, D.B.
The agricultural systems of the world : An evolutionary approach - London: Cambridge University, 1974. - 358p.; 24 cm
0 521 20269 8
Agriculture
630 / GRI
The agricultural systems of the world : An evolutionary approach - London: Cambridge University, 1974. - 358p.; 24 cm
0 521 20269 8
Agriculture
630 / GRI