van Dierendonck, F. J. E.
The manuring of coffee, cocoa, tea and tobacco / prepared by F.J.E. van Dierendonck. - Geneva : Centre d' Etude de l' Azote, [1959]. - 205 p. : col. ill., maps.
Green manuring.
Soil fertility.
The manuring of coffee, cocoa, tea and tobacco / prepared by F.J.E. van Dierendonck. - Geneva : Centre d' Etude de l' Azote, [1959]. - 205 p. : col. ill., maps.
Green manuring.
Soil fertility.