Rickford, John R. 1998. The creole origins of African-American Vernacular English: Evidence from copula absence. In Mufwene, Salikoko S. and Rickford, John R. and Bailey, Guy and Baugh, John (eds.), African-American English: Structure, history, use. London: Routledge.
@incollection{rickford1998, address = {London}, author = {Rickford, John R.}, booktitle = {African-American English: Structure, history, use}, editor = {Mufwene, Salikoko S. and Rickford, John R. and Bailey, Guy and Baugh, John}, key = {Rickford 1998}, publisher = {Routledge}, title = {The creole origins of African-American Vernacular English: Evidence from copula absence}, year = {1998} }