00497nam a2200157Ia 450000500170000000800460001703700180006304000200008104100130010108400240011410000170013824501230015526000090027830000090028754600430029620250508155638.0008  250505s9999    xx            000 0 eng d  aDissertations  aFEDLbengcFEDL  aeng2eng  a155.5, REN/DIqFEDL  aRenu Krishna 0aInvestigation into the changing pattern of problems faced by children in late childhood preadolescence and adolescence  c1968  a83p.  aM. Ed. Dissertation (Delhi University)