The Agricultural systmes of the world : an evolutionary approach
Grigg, D. B.
The Agricultural systmes of the world : an evolutionary approach D. B. Grigg - Cambridge : Cambridge University Press, 1974. - 358 p. ; 23 cm.
0521202698
Agricultural
630.9 GRI
The Agricultural systmes of the world : an evolutionary approach D. B. Grigg - Cambridge : Cambridge University Press, 1974. - 358 p. ; 23 cm.
0521202698
Agricultural
630.9 GRI