00466nam a2200133Ia 4500008004100000040001700041082002200058110004100080245004100121260002200162300001200184500006100196650007500257190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta311.2bI39N  aIndia. National Sample Survey Office 0aNSS 21st round :July 1966- June 1967  aDelhibNSSOc1975  ai, 37p.  aContents: no. 210- Birth and death rate by recall period  aSampling (Statistics); Population; Birth control; Mortality-Statistics