Citazione Stile APA (7a Edizione)

Friend, M. P. (2011). Special education: Contemporary perspectives for school professionals (3rd ed.). Pearson Education.

Citazione stile Chigago Style (17a edizione)

Friend, Marilyn Penovich. Special Education: Contemporary Perspectives for School Professionals. 3rd ed. Upper Saddle River, N.J: Pearson Education, 2011.

Citatione MLA (9a ed.)

Friend, Marilyn Penovich. Special Education: Contemporary Perspectives for School Professionals. 3rd ed. Pearson Education, 2011.