Zeigler, J. (1991). Why Do Elephant's Wear Purple Suspenders? Smithmark Pub.
Chicago-Zitierstil (17. Ausg.)Zeigler, Judy. Why Do Elephant's Wear Purple Suspenders? New York: Smithmark Pub, 1991.
MLA-Zitierstil (8. Ausg.)Zeigler, Judy. Why Do Elephant's Wear Purple Suspenders? Smithmark Pub, 1991.
警告：這些引文格式不一定是100％准確.