Azar, b. s. (1989). Understanding and using english grammar. Prentice Hall Regents.
Cita Chicago Style (17a ed.)Azar, betty schrampher. Understanding and Using English Grammar. Prentice Hall Regents, 1989.
Cita MLA (9a ed.)Azar, betty schrampher. Understanding and Using English Grammar. Prentice Hall Regents, 1989.
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