TY - BOOK AU - Thakur, Surinder Singh TI - Repair and maintenance cost pattern of farm power and machinery U1 - T 631.372 T30R PY - 1992/// CY - Ludhiana PB - PAU KW - AGRICULTURAL MACHINERY - MAINTENANCE AND REPAIR KW - AGRICULTURAL MACHINERY - COST OF REPAIR KW - AGRICULTURAL MACHINERY - MAINTENANCE AND R N2 - This study was undertaken to see the effect of annual use, age of tractors, make and model and farm size on the R&M cost. Data were collected from the logbook and Stock registers maintained by each office of the concerned farm managers. However, the surve ER -