Epstein, S. S. (1977). Investigations in pragmatic theory. Indiana University Linguistics Club.
Lua i Stíl Chicago (17ú heag.)Epstein, Samuel Seth. Investigations in Pragmatic Theory. Bloomington, Ind: Indiana University Linguistics Club, 1977.
Lua MLA (9ú heag.)Epstein, Samuel Seth. Investigations in Pragmatic Theory. Indiana University Linguistics Club, 1977.
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