APA (7th ed.) Citation

Allen, J. (2008). Baby signs: A baby-sized guide to speaking with sign language. Dial Books for Young Readers.

Chicago Style (17th ed.) Citation

Allen, Joy. Baby Signs: A Baby-sized Guide to Speaking with Sign Language. New York: Dial Books for Young Readers, 2008.

MLA (8th ed.) Citation

Allen, Joy. Baby Signs: A Baby-sized Guide to Speaking with Sign Language. Dial Books for Young Readers, 2008.