APA (7th ed.) Citation

Acredolo, L. P., & Goodwyn, S. (1996). Baby signs: How to talk with your baby before your baby can talk. Contemporary Books.

Chicago Style (17th ed.) Citation

Acredolo, Linda P., and Susan Goodwyn. Baby Signs: How to Talk with Your Baby Before Your Baby Can Talk. Chicago: Contemporary Books, 1996.

MLA (8th ed.) Citation

Acredolo, Linda P., and Susan Goodwyn. Baby Signs: How to Talk with Your Baby Before Your Baby Can Talk. Contemporary Books, 1996.