Cita APA (7th ed.)

Williamson, R. (1993). To meet early adolescent needs. National Association of Secondary School Principals.

Cita Chicago (17th ed.)

Williamson, Ronald. To Meet Early Adolescent Needs. Reston: National Association of Secondary School Principals, 1993.

Cita MLA (9th ed.)

Williamson, Ronald. To Meet Early Adolescent Needs. National Association of Secondary School Principals, 1993.