References
- Berdan , Robert . 1975 . “ The necessity of variable rules ” . In Analyzing Variation in Language , Edited by: Fasold , Ralph W. and Shuy , Roger W. 11 – 26 . Washington D.C. : Georgetown Unversity Press .
- Fasold , Ralph W. 1972 . Tense Marketing in Black English , Arlington, Va. : Center for Applied Linguistics .
- Guy , Gregory R. 1974 . “ Variation in the group and the individual: The case of final stop deletion ” . In Pennsylvania Working Papers in Lingusitic Change and Variation 1.4
- Labov , William . 1966 . The Social Stratification of English in New York City , Washington, D.C. : Center for Applied Linguistics .
- _____ . 1972 . Language in the Inner City , Philadelphia : University of Pennsylvania Press .
- Trudgill , Peter . 1974 . The Social Differentiation of English in Norwich , Cambridge : Cambridge University Press .
- Wolfram , Walter A. 1969 . A Sociolinguistic Description of Detroit Negro Speech , Washington, D.C. : Center for Applied Linguistics .
- _____ . 1973 . Sociolinguistic Aspects of Assimilation , Arlington, Va. : Center for Applied Linguistics .
- An earlier version of this paper was presented at the Linguistic Society of America annual meeting. Chicago, Illinois, December 1977.