Cita APA (7th ed.)
Hewett, F. M., & Forness, S. R. (1977). Education of exceptional learners (2nd ed.). Allyn and Bacon.
Cita Chicago (17th ed.)
Hewett, Frank M., i Steven R. Forness. Education of Exceptional Learners. 2nd ed. Boston: Allyn and Bacon, 1977.
Cita MLA (9th ed.)
Hewett, Frank M., i Steven R. Forness. Education of Exceptional Learners. 2nd ed. Allyn and Bacon, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.