Dòng Nội dung
1
Biotechnology : building on farmers knowledge / Joske Bunders; Bertus Haverkort; Wim Hiemstra.
Basingstoke : Macmillan, 1997.
xvi, 256 s.; 25 cm.
2
Linking with farmers : networking for low-external-input and sustainable agriculture / edited by Carine Alders, Bertus Haverkort and Laurens van Veldhuizen.
London, U.K. : Intermediate Technology Publications, 1993.
vi, 298 p. : ill., maps ; 22 cm.

Contributed articles presented at an International Workshop on Networking for Low-external-input and Sustainable Agriculture in Silang, Philippines, in March 1992, organized by International Institute of Rural Reconstruction, World Neighbors and ILEIA.