00509nam a2200181Ia 4500001001100000005001700011008004300028020002100071020002400092245005100116260004500167300000900212650002400221650002200245650002200267650002300289999001500312000001284120251012174524.0  860731s1975    enk           000 0 eng d  a0710070608 (set)  a9780710070609 (set)10aClass, codes and controlcby Basil Bernstein.   aLondonbRoutledge and Kegan Paulc1975.   a3 v. 0aChildrenxLanguage. 0aSociolinguistics. 6aEnfantsxLangage. 6aSociolinguistique.  c5283d5283