Cita APA (7a ed.)

National Association of Secondary School Principals (U.S.). (1981). Schools in the middle. The Association.

Cita Chicago Style (17a ed.)

National Association of Secondary School Principals (U.S.). Schools in the Middle. Reston, Va.: The Association, 1981.

Cita MLA (9a ed.)

National Association of Secondary School Principals (U.S.). Schools in the Middle. The Association, 1981.