00551nam a2200193Ia 450000500170000000800410001702000150005808200160007310000180008924500400010725000080014726000380015530000130019365000190020665000130022594200060023895200980024499900150034220250519010449.0240331s9999    xx            000 0 und d  a9555530025  a300.72bRAT  aRathnapala, N 0aSamaja viddya paryeshana muuladarma  a2nd  aVarakapolabArya Publishersc1987  a231 p .,  aSocial Science  aResearch  cL  001040708LaWERCLbWERCLcSSCd2024-03-31l0o 300.72 RATp1052r2024-03-31w2024-03-31yL  c1008d1008