National Council for the Social Studies Yearbook.
芝加哥风格引文National Council for the Social Studies Yearbook.
MLA引文National Council for the Social Studies Yearbook.
警告：这些引文格式不一定是100％准确.
APA引文
National Council for the Social Studies Yearbook.
芝加哥风格引文National Council for the Social Studies Yearbook.
MLA引文National Council for the Social Studies Yearbook.