Cita APA (7th ed.)

Heller, . L. (2006). I Want...Teaching Your Baby to Sign.

Cita Chicago (17th ed.)

Heller, Lora. I Want...Teaching Your Baby to Sign. New York/Sterling Publishing Co Inc, 2006.

Cita MLA (8th ed.)

Heller, Lora. I Want...Teaching Your Baby to Sign. 2006.