Mercer, C. D., Hughes, C., Olson, J. L., & Mercer, A. R. (1987). Students with learning disabilities (3rd ed.). Merrill Pub.
Lua i Stíl Chicago (17ú heag.)Mercer, Cecil D., Charlie Hughes, Judy L. Olson, agus Ann R. Mercer. Students with Learning Disabilities. 3rd ed. Columbus, Ohio: Merrill Pub, 1987.
Lua MLA (9ú heag.)Mercer, Cecil D., et al. Students with Learning Disabilities. 3rd ed. Merrill Pub, 1987.
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