France. Groupe de recherche et d'échanges technologiques, Intermediate Technology Development Group, & Technical Centre for Agricultural and Rural Cooperation (Ede, Netherlands). (1992). Tools for agriculture: A guide to appropriate equipment for smallholder farmers (4th ed.). Intermediate Technology Publications in association with CTA and GRET.
Παραπομπή σε μορφή Chicago (17η εκδ.)France. Groupe de recherche et d'échanges technologiques, Intermediate Technology Development Group, και Netherlands) Technical Centre for Agricultural and Rural Cooperation (Ede. Tools for Agriculture: A Guide to Appropriate Equipment for Smallholder Farmers. 4th ed. London: Intermediate Technology Publications in association with CTA and GRET, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)France. Groupe de recherche et d'échanges technologiques, et al. Tools for Agriculture: A Guide to Appropriate Equipment for Smallholder Farmers. 4th ed. Intermediate Technology Publications in association with CTA and GRET, 1992.