00360nam a2200133Ia 450000500170000000800410001702000060005808200130006410000170007724500430009426000330013730000130017050000430018320250123013042.0240331s9999    xx            000 0 und d  a   2PERa920  aDesilva, E.P 2aA short Biography of Dr. N. M. Perera   aColombobE.P. de Silvac1975  a131 p .,  aA Short Biography of  Dr. N. M. Perera