TY - GEN AU - Basant, Rakesh AU - Subrahmamian, K. K. TI - Agro-mechanical diffusion in a backward region SN - 1853390232 U1 - 631.371 PY - 1990/// CY - Rugby : PB - Intermediate technology publications KW - Agricultural machinery KW - Farming implements N1 - Includes bibliographical references ER -