Não informado. (1999). High school magazine: For principals, assistant principals, and all high school leaders. National Association of Secondary School Principals.
Cytowanie według stylu Chicago (wyd. 17)Não informado. High School Magazine: For Principals, Assistant Principals, and All High School Leaders. Reston, Va: National Association of Secondary School Principals, 1999.
Cytowanie według stylu MLA (wyd. 8)Não informado. High School Magazine: For Principals, Assistant Principals, and All High School Leaders. National Association of Secondary School Principals, 1999.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..