found:His The social stratification of English in New York City, 1966.
found:The atlas of North American English, c2006:ECIP t.p. (William Labov) data view (b. Dec. 4, 1927; professor of linguistics at Univ. of Pennsylvania)
found:Wikipedia, 27 Dec. 2024(William Labov; William David Labov; d. Dec. 17, 2024, in Philadelphia, Pa.; b. in Rutherford, N.J.; founder of variationist sociolinguistics)