Citazione Stile APA (7a Edizione)

Olweus, D. (1993). Bullying at school: What we know and what we can do (1a. ed.). Blackwell.

Citazione stile Chigago Style (17a edizione)

Olweus, Dan. Bullying at School: What We Know and What We Can Do. 1a. ed. Malden: Blackwell, 1993.

Citatione MLA (9a ed.)

Olweus, Dan. Bullying at School: What We Know and What We Can Do. 1a. ed. Blackwell, 1993.