00358nam a2200121 a 450000500170000002000150001708200240003210000250005624500630008126000340014430000190017849000390019720251203091717.0  a019823905X  a306.44096,bD, myer  aMyers-Scotton, Carol  aSocial motivations for codeswitching: evidence from Africa  aOxfordbClarendon Pressc1993  axii,178p, 22cm  aOxford studies in language contact