Citazione Stile APA (7a Edizione)

National Association of Secondary School Principals (U.S.). (2006). Principal's research review. National Association of Secondary School Principals.

Citazione stile Chigago Style (17a edizione)

National Association of Secondary School Principals (U.S.). Principal's Research Review. Reston, VA: National Association of Secondary School Principals, 2006.

Citatione MLA (9a ed.)

National Association of Secondary School Principals (U.S.). Principal's Research Review. National Association of Secondary School Principals, 2006.