ROGER , A. (1997). YELLOW HIPPO: LITTLE GIANT SERIES.
芝加哥风格引文ROGER , ALAN. YELLOW HIPPO: LITTLE GIANT SERIES. 1997.
MLA引文ROGER , ALAN. YELLOW HIPPO: LITTLE GIANT SERIES. 1997.
警告：这些引文格式不一定是100％准确.
APA引文
ROGER , A. (1997). YELLOW HIPPO: LITTLE GIANT SERIES.
芝加哥风格引文ROGER , ALAN. YELLOW HIPPO: LITTLE GIANT SERIES. 1997.
MLA引文ROGER , ALAN. YELLOW HIPPO: LITTLE GIANT SERIES. 1997.