The agricultural systems of the world :
Grigg, David B.
The agricultural systems of the world : an evolutionary approach / D. B. Grigg. - London ; New York : Cambridge University Press, 1974. - ix, 358 p. : maps ; 24 cm. - Cambridge geographical studies ; 5 .
Includes index.
Bibliography: p. 308-343.
0-521-09843-2
Agricultural geography.
Agriculture--History.
630/.9 GRI
The agricultural systems of the world : an evolutionary approach / D. B. Grigg. - London ; New York : Cambridge University Press, 1974. - ix, 358 p. : maps ; 24 cm. - Cambridge geographical studies ; 5 .
Includes index.
Bibliography: p. 308-343.
0-521-09843-2
Agricultural geography.
Agriculture--History.
630/.9 GRI