M W Sullivan. (1964). Programmed grammar: Parts of speech and sentence patterns. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoM W Sullivan. Programmed Grammar: Parts of Speech and Sentence Patterns. New York: McGraw-Hill, 1964.
MLA citiranjeM W Sullivan. Programmed Grammar: Parts of Speech and Sentence Patterns. New York: McGraw-Hill, 1964.
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