Van Draanen, W. Sammy Keyes and the Runaway Elf. Yearling Books.
芝加哥风格引文Van Draanen, Wendelin. Sammy Keyes and the Runaway Elf. Yearling Books.
MLA引文Van Draanen, Wendelin. Sammy Keyes and the Runaway Elf. Yearling Books.
警告：这些引文格式不一定是100％准确.
APA引文