APA
(1991). Austism and Asperger Syndrome. New York: Cambridge University Press.
Chicago
1991. Austism and Asperger Syndrome. New York: Cambridge University Press.
Harvard
(1991). Austism and Asperger Syndrome. New York: Cambridge University Press.
MLA
Austism and Asperger Syndrome. New York: Cambridge University Press. 1991.