APA (7th ed.) Citation

National Association of Secondary School Principals (U.S.). Research Dept. (1975). The practitioner. Research Dept. of the National Association of Secondary School Principals].

Chicago Style (17th ed.) Citation

National Association of Secondary School Principals (U.S.). Research Dept. The Practitioner. [Reston, Va.: Research Dept. of the National Association of Secondary School Principals], 1975.

MLA (8th ed.) Citation

National Association of Secondary School Principals (U.S.). Research Dept. The Practitioner. Research Dept. of the National Association of Secondary School Principals], 1975.