Patel, k. (1978). Farm-structure and resource-use in draught-prone area Vol II. N.I.B mgt.
芝加哥风格引文Patel, k. Farm-structure and Resource-use in Draught-prone Area Vol II. NULL: N.I.B mgt, 1978.
MLA引文Patel, k. Farm-structure and Resource-use in Draught-prone Area Vol II. N.I.B mgt, 1978.
警告：这些引文格式不一定是100％准确.