Gaya APA

Hallahan, ., Pullen, P, C. (2009). Exceptional learners : an introduction to special education (11th ed.). New York: Pearson Education.

Gaya MLA

Hallahan, ., Pullen, Paige, C. "Exceptional learners : an introduction to special education". 11th ed. New York: Pearson Education, 2009. Monograf.