(1972). Curriculum guide series.
芝加哥风格引文Curriculum Guide Series. 1972.
MLA引文Curriculum Guide Series. 1972.
警告：这些引文格式不一定是100％准确.
APA引文
(1972). Curriculum guide series.
芝加哥风格引文Curriculum Guide Series. 1972.
MLA引文Curriculum Guide Series. 1972.