Beyer, M. (2015). Teach your baby to sign: An illustrated guide to simple sign language for babies and toddlers--includes 30 new pages of signs and illustrations! (Revised and updated, 2nd edition.). Fair Winds Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Beyer, Monica. Teach Your Baby to Sign: An Illustrated Guide to Simple Sign Language for Babies and Toddlers--includes 30 New Pages of Signs and Illustrations! Revised and updated, 2nd edition. Beverly, MA: Fair Winds Press, 2015.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Beyer, Monica. Teach Your Baby to Sign: An Illustrated Guide to Simple Sign Language for Babies and Toddlers--includes 30 New Pages of Signs and Illustrations! Revised and updated, 2nd edition. Fair Winds Press, 2015.
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