Citazione Stile APA (7a Edizione)

(1984). School trip safety program guidelines: Recommended practice. Institute of Transportation Engineers.

Citazione stile Chigago Style (17a edizione)

School Trip Safety Program Guidelines: Recommended Practice. Washington, D.C: Institute of Transportation Engineers, 1984.

Citatione MLA (9a ed.)

School Trip Safety Program Guidelines: Recommended Practice. Institute of Transportation Engineers, 1984.