00436    a2200121   4500020001800000082001700018100002000035245013900055260006600194300001500260650001200275650002700287  a9789555901048  a306.349bSIR  aSiriweera, W.I.  aTradition and livelihoodba study of traditional practices and technologies in agriculture, animal husbandry, irrigation and fisheries  aColombobNational Science Foundation of Sri Lankac2009g2009  a83p.c31cm  aCULTURE  aAGRICULTURAL SOCIOLOGY