Johnston, L., Beard, L. A., & Carpenter, L. B. (2007). Assistive technology: Access for all students. Pearson/Merrill/Prentice Hall.
Cita Chicago (17th ed.)Johnston, Linda, Lawrence A. Beard, i Laura Bowden Carpenter. Assistive Technology: Access for All Students. Upper Saddle River, N.J: Pearson/Merrill/Prentice Hall, 2007.
Cita MLA (9th ed.)Johnston, Linda, et al. Assistive Technology: Access for All Students. Pearson/Merrill/Prentice Hall, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.