00550nam a2200193 a 45000010005000000030003000050050017000080080041000250350018000660350017000840500022001011000026001232450064001492600037002133000026002505040033002766500026003097000021003352764UR20220427183125.0                                1  spa    a(janium) 2753  a(janium)2753 4aLB1525b.D69 19741 aDowning, John,d1922-10aMadurez para la lectura /cJohn Downing, Derek V. Thackray.  aBuenos Aires bKapelusz cc1978.  a127 p. bil. c24 cm.  aBibliografía : p. 112-128. 0aFacilidad de lectura.10aThackray, Derek.