00393nam a2200109Ia 4500008004100000040001700041082002200058110004100080245012100121260003200242300000900274190329s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta311.2bI39N  aIndia. National Sample Survey Office 0aNSS 62nd roundbinstructions to field staff :  design, concepts, definitions and procedures :  socio-economic survey  aNew Delhibthe authorc2005  av.p.