Citazione Stile APA (7a Edizione)

Pro-Ed (Firm) & Hammill Institute on Disabilities. (1999). Journal of positive behavior interventions. Pro-Ed.

Citazione stile Chigago Style (17a edizione)

Pro-Ed (Firm) e Hammill Institute on Disabilities. Journal of Positive Behavior Interventions. Austin, TX: Pro-Ed, 1999.

Citatione MLA (9a ed.)

Pro-Ed (Firm) e Hammill Institute on Disabilities. Journal of Positive Behavior Interventions. Pro-Ed, 1999.