(1952). Petunia's Christmas / written and illustrated by Roger Duvoisin.
芝加哥风格引文Petunia's Christmas / Written and Illustrated by Roger Duvoisin. 1952.
MLA引文Petunia's Christmas / Written and Illustrated by Roger Duvoisin. 1952.
警告：这些引文格式不一定是100％准确.
APA引文