Bulletin of the Department of Elementary School Principals.
芝加哥风格引文Bulletin of the Department of Elementary School Principals.
MLA引文Bulletin of the Department of Elementary School Principals.
警告：这些引文格式不一定是100％准确.
APA引文
Bulletin of the Department of Elementary School Principals.
芝加哥风格引文Bulletin of the Department of Elementary School Principals.
MLA引文Bulletin of the Department of Elementary School Principals.