APA (7th ed.) Citation

Hassold Terry J. & David Patterson. (1999). Down syndrome: Apromising future togetther. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Hassold Terry J. and David Patterson. Down Syndrome: Apromising Future Togetther. USA: John Wiley & Sons, 1999.

MLA (9th ed.) Citation

Hassold Terry J. and David Patterson. Down Syndrome: Apromising Future Togetther. John Wiley & Sons, 1999.