Soil conservation and management in humid tropics /
Greenland, D.J.
Soil conservation and management in humid tropics / D.J. Greenland & R. Lal. - New York : John Wiley and Sons, 1977. - 283 pages.
Soil conservation and management in humid tropics / D.J. Greenland & R. Lal. - New York : John Wiley and Sons, 1977. - 283 pages.