The agricultural systems of the world : an evolutionary approach /
Grigg, D. B.
The agricultural systems of the world : an evolutionary approach / D. B. Grigg - Cambridge : Cambridge University Press, 1974 - 358 p. : ill., maps. ; 24 cm. - Cambridge geographical studies v.5 .
Includes bibliographies and indexes
0521202698
73-082451
Agricultural geography
Agriculture--History
The agricultural systems of the world : an evolutionary approach / D. B. Grigg - Cambridge : Cambridge University Press, 1974 - 358 p. : ill., maps. ; 24 cm. - Cambridge geographical studies v.5 .
Includes bibliographies and indexes
0521202698
73-082451
Agricultural geography
Agriculture--History
