na INLIS000000000004342 0010-0321000426 ECONOMICS and the design of small - farmer technology Grant M. Scoble John L. Dillon Ames, Iowa Iowa State University Press 1979 xii, 211 p. : ill ; 24 cm 631.003 631.003 PETANI KECIL TEKNOLOGI EKONOMI PERTANIAN. 1531 1531