McWhorter, K. T. (1992). Efficient and flexible reading (3rd ed.). Harper Collins.
Cita Chicago (17th ed.)McWhorter, Kathleen T. Efficient and Flexible Reading. 3rd ed. New York: Harper Collins, 1992.
Cita MLA (9th ed.)McWhorter, Kathleen T. Efficient and Flexible Reading. 3rd ed. Harper Collins, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.