Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.