HARTLEY, J. Reading and writing. Holt, Rinehart and wiston, 1962.
Lua i Stíl Chicago (17ú heag.)HARTLEY, John. Reading and Writing. Holt, Rinehart and wiston, 1962.
Lua MLA (8ú heag.)HARTLEY, John. Reading and Writing. Holt, Rinehart and wiston, 1962.
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