William Labov appears in the following:
That Changing Philly Accent
Tuesday, April 09, 2013
Do people make fun of you for how you say "water"? You may be from Philly! William Labov, professor of linguistics at University of Pennsylvania, and Josef Fruehwald, PhD candidate, discuss the study they co-authored on how Philadelphians' speech patterns and accents have changed over the past century, titled One Hundred Years of Sound Change in Philadelphia: Linear Incrementation, Reversal, and Reanalysis.
Years of Sound Change in Philadelphia: Linear Incrementation, Reversal, and
Reanalysis