00525ntaaa2200193 45000030003000000050017000030080021000200400037000410820017000781000022000952450034001172500010001512600047001613000012002085000050002206500025002706500024002957000012003190120251027202658.00714s1973 ag 01 aAR-BaBNbspacAR-BaBNeaacrdRIC a428.2400 R63 aRojas, Pauline M aFries American English series a1 ed. aBoston : bD.C. Heath and Company, cc1952 a4 tomos aFor the study of English as a second language ainglés-gramática agramática inglesa aOtros,