Cramer, R. L. (1984). Language: Structure and use (2nd.ed.). Scott, Foresman and co..
Lua i Stíl Chicago (17ú heag.)Cramer, Ronald L. Language: Structure and Use. 2nd.ed. Illinois: Scott, Foresman and co., 1984.
Lua MLA (9ú heag.)Cramer, Ronald L. Language: Structure and Use. 2nd.ed. Scott, Foresman and co., 1984.
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