APA
Hamill L. B., .Teaching Students with Moderate to Severe Disabilities. : Pearson,2002.
Chicago
Hamill Lee B, .Teaching Students with Moderate to Severe Disabilities. : Pearson,2002.
Harvard
Hamill L. B., .Teaching Students with Moderate to Severe Disabilities. : Pearson,2002.
MLA
Hamill Lee B, .: Pearson,2002. .