APA (7th ed.) Citation

National Institute of Child Health and Human Development (U.S.), De La Cruz, F., & Gerald, P. S. (1981). Trisomy 21 (Down syndrome): Research perspectives. University Park Press.

Chicago Style (17th ed.) Citation

National Institute of Child Health and Human Development (U.S.), Felix De La Cruz, and Park S. Gerald. Trisomy 21 (Down Syndrome): Research Perspectives. Baltimore: University Park Press, 1981.

MLA (9th ed.) Citation

National Institute of Child Health and Human Development (U.S.), et al. Trisomy 21 (Down Syndrome): Research Perspectives. University Park Press, 1981.