003260000a22001210004500060000800000082001600008100002000024245005700044260004700101260000900148300000800157650003900165  a100  a630.913 WRI  aWrigley, Gordon  aTropical agriculture : the development of production  aBombay, Taraporevala D.B.sons & co pvt ltd  c1961  a291  aTropical agriculture/ crop ecology