Lester, M. (1990). Grammar in the classroom. Macmillan.
Cita Chicago Style (17a ed.)Lester, Mark. Grammar in the Classroom. New York: Macmillan, 1990.
Cita MLA (9a ed.)Lester, Mark. Grammar in the Classroom. Macmillan, 1990.
Precaución: Estas citas no son 100% exactas.