Cita APA (7th ed.)

National Association of Elementary School Principals (U.S.). (1980). Principal. National Association of Elementary School Principals.

Cita Chicago (17th ed.)

National Association of Elementary School Principals (U.S.). Principal. Arlington, Va.: National Association of Elementary School Principals, 1980.

Cita MLA (9th ed.)

National Association of Elementary School Principals (U.S.). Principal. National Association of Elementary School Principals, 1980.