National Association of Secondary School Principals (U.S.). Division of Student Activities. (1988). Leadership for student activities. National Association of Secondary School Principals, Division of Student Activities.
芝加哥风格引文National Association of Secondary School Principals (U.S.). Division of Student Activities. Leadership for Student Activities. [Reston, Va.: National Association of Secondary School Principals, Division of Student Activities, 1988.
MLA引文National Association of Secondary School Principals (U.S.). Division of Student Activities. Leadership for Student Activities. National Association of Secondary School Principals, Division of Student Activities, 1988.
警告：这些引文格式不一定是100％准确.