00371nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000220010410000230012624500440014926000320019324894UR20220427180238.0061103|||||||||||||||||||||||||||||||| d  a(janium) 24883  a(janium)24881 4aPE2751b.E54 19771 aYorkey, Richard C.10aEnglish for international communication  bAmerican book Companyc1977