Heflin, L. J., & Bullock, L. M. (1992). Exceptionalities in children and youth (Instructor's ed.). Allyn and Bacon.
Cita Chicago (17th ed.)Heflin, L. Juane, i Lyndal M. Bullock. Exceptionalities in Children and Youth. Instructor's ed. Boston: Allyn and Bacon, 1992.
Cita MLA (9th ed.)Heflin, L. Juane, i Lyndal M. Bullock. Exceptionalities in Children and Youth. Instructor's ed. Allyn and Bacon, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.