APA(7版)引用形式

Sierra, J., & Sweet, M. (2009). The sleepy little alphabet: A bedtime story from Alphabet Town. Alfred A. Knopf.

Chicagoスタイル(17版)引用形式

Sierra, Judy, , Melissa Sweet. The Sleepy Little Alphabet: A Bedtime Story from Alphabet Town. New York: Alfred A. Knopf, 2009.

MLA(8版)引用形式

Sierra, Judy, , Melissa Sweet. The Sleepy Little Alphabet: A Bedtime Story from Alphabet Town. Alfred A. Knopf, 2009.