00580nam a2200157Ia 4500008004100000040001700041082002200058100002100080110007600101245003600177260002400213300001000237440003200247500010700279650003600386190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta312.7bU58D  aGlass, D V (Ed.)  aUnited Nations Educational Scientific and Cultural Organization (Paris) 0aDemographyba surveycD V Glass  aParisbUNESCOc1957  a200p.  aTeaching of social sciences  aA survey prepared under the auspices of the International Union for the Scientific study of population  aDemographic surveys; Demography