J. B. Carroll and R. O. Freedle. Brings together discourse analysis and semantic modeling. Discusses importance of context in determination of verb tense, in foregrounding elements of the discourse, in accounting for the identity of the speaker, and in assumptions a speaker can make about information shared with a hearer. Study of the structure of two-way conversations. Describes signals and rules used by conversants in exchanging turns in conversation.
Auditors can either backchannel or make a turn claim signal.
The Socio-Cultural Context, vol. F. J. Newmeyer. Cambridge UP, 1989. Discusses the principles that guide ethnographers of speech. CA, on the other hand, doesn't rely on sociocultural context only on turn-taking system, which it claims is universal.