00746cam a2200241 i 450000100060000000300080000600500170001400800410003102000170007203500190008904000320010804100080014008200210014824500880016926000490025730000330030650400390033965000140037865000160039265000190040865000320042770000450045935149BD-RjUL20211209052252.0140521t1978    enka     b    001 0 eng d  a0124330509 :  a(BD-RjUL)35243  aDLCcDLCdDLCdBD-RJULbeng  aeng00a301.41bSEX 197800aSex and age as principles of social differentiation /cedited by J. S. La Fontaine.  aLondon ;aNew York :bAcademic Press,c1978.  avi, 188 p. :bill. ;c24 cm.  aIncludes bibliographies and index. 0aSex role. 0aAge groups. 0aSocial groups. 0aDifferentiation (Sociology)1 aLa Fontaine, J. S.q(Jean Sybil),d1931-